diff --git a/asminc/mouse-kernel.inc b/asminc/mouse-kernel.inc
index d3ec9b30f..4ad9a733e 100644
--- a/asminc/mouse-kernel.inc
+++ b/asminc/mouse-kernel.inc
@@ -78,6 +78,10 @@
                         .byte
             CSHOW       .addr
                         .byte
+            CDRAW       .addr
+                        .byte
+            CMOVE       .addr
+                        .byte
             CMOVEX      .addr
                         .byte
             CMOVEY      .addr
@@ -90,14 +94,16 @@
 .struct MOUSE_CALLBACKS
         HIDE    .addr                   ; Hide the mouse cursor
         SHOW    .addr                   ; Show the mouse cursor
-        MOVEX   .addr                   ; Move the mouse cursor
-        MOVEY   .addr                   ; Dito for Y
+        DRAW    .addr                   ; Draw the mouse cursor
+        MOVE    .addr                   ; Prepare to move the mouse cursor
+        MOVEX   .addr                   ; Move the mouse cursor to X coord
+        MOVEY   .addr                   ; Move the mouse cursor to Y coord
 .endstruct
 
 ;------------------------------------------------------------------------------
 ; The mouse API version, stored in MOUSE_HDR::VERSION
 
-MOUSE_API_VERSION       = $04
+MOUSE_API_VERSION       = $05
 
 ;------------------------------------------------------------------------------
 ; Bitmapped mouse driver flags, stored in MOUSE_HDR::FLAGS.
@@ -169,12 +175,10 @@ MOUSE_BTN_RIGHT         = $01
         .global mouse_uninstall
         .global mouse_hide
         .global mouse_show
-        .global mouse_setbox                     
+        .global mouse_setbox
         .global mouse_getbox
         .global mouse_move
         .global mouse_buttons
         .global mouse_pos
         .global mouse_info
         .global mouse_ioctl
-
-
diff --git a/libsrc/apple2/mcbdefault.s b/libsrc/apple2/mcbdefault.s
index 2ade00aef..892e387e0 100644
--- a/libsrc/apple2/mcbdefault.s
+++ b/libsrc/apple2/mcbdefault.s
@@ -16,6 +16,7 @@
         .bss
         
 backup: .res    1
+visible:.res    1
 
 ; ------------------------------------------------------------------------
 
@@ -25,6 +26,8 @@ backup: .res    1
 _mouse_def_callbacks:
         .addr   hide
         .addr   show
+        .addr   draw
+        .addr   move
         .addr   movex
         .addr   movey
 
@@ -65,10 +68,15 @@ done:
         .ifdef  __APPLE2ENH__
         bit     LOWSCR          ; Doesn't hurt in 40 column mode
         .endif
-        rts
+return: rts
 
 ; Hide the mouse cursor.
 hide:
+        dec     visible
+        ; Fall through
+
+; Prepare to move the mouse cursor.
+move:
         jsr     getcursor       ; Cursor visible at current position?
         bne     done            ; No, we're done
         lda     backup          ; Get character at cursor position
@@ -76,6 +84,13 @@ hide:
 
 ; Show the mouse cursor.
 show:
+        inc     visible
+        ; Fall through
+
+; Draw the mouse cursor.
+draw:
+        lda     visible
+        beq     return
         jsr     getcursor       ; Cursor visible at current position?
         beq     done            ; Yes, we're done
         sta     backup          ; Save character at cursor position
diff --git a/libsrc/apple2/mou/a2.stdmou.s b/libsrc/apple2/mou/a2.stdmou.s
index 8414cde36..ecfb7da58 100644
--- a/libsrc/apple2/mou/a2.stdmou.s
+++ b/libsrc/apple2/mou/a2.stdmou.s
@@ -57,6 +57,8 @@ status          := $0778
         ; Callback table, set by the kernel before INSTALL is called
 CHIDE:  jmp     $0000                   ; Hide the cursor
 CSHOW:  jmp     $0000                   ; Show the cursor
+CDRAW:  jmp     $0000                   ; Draw the cursor
+CMOVE:  jmp     $0000                   ; Prepare to move the cursor
 CMOVEX: jmp     $0000                   ; Move the cursor to X coord
 CMOVEY: jmp     $0000                   ; Move the cursor to Y coord
 
@@ -67,7 +69,6 @@ CMOVEY: jmp     $0000                   ; Move the cursor to Y coord
 box:    .tag    MOUSE_BOX
 info:   .tag    MOUSE_INFO
 slot:   .res    1
-visible:.res    1
 
 ; ------------------------------------------------------------------------
 
@@ -321,7 +322,6 @@ MOVE:
 ; no special action is required besides hiding the mouse cursor.
 ; No return code required.
 HIDE:
-        dec     visible
         sei
         jsr     CHIDE
         cli
@@ -333,7 +333,9 @@ HIDE:
 ; no special action is required besides enabling the mouse cursor.
 ; No return code required.
 SHOW:
-        inc     visible
+        sei
+        jsr     CSHOW
+        cli
         rts
 
 ; BUTTONS: Return the button mask in A/X.
@@ -409,7 +411,7 @@ done:   rts
         beq     :+
 
         ; Remove the cursor at the old position
-update: jsr     CHIDE
+update: jsr     CMOVE
 
         ; Get and set the new X position
         ldy     slot
@@ -427,11 +429,7 @@ update: jsr     CHIDE
         stx     info + MOUSE_POS::YCOORD+1
         jsr     CMOVEY
 
-        ; Check for visibility
-:       lda     visible
-        beq     :+
-
         ; Draw the cursor at the new position
-        jsr     CSHOW
-:       sec                     ; Interrupt handled
+:       jsr     CDRAW
+        sec                     ; Interrupt handled
         rts
diff --git a/libsrc/c128/mcbdefault.s b/libsrc/c128/mcbdefault.s
index cdedf4904..fcf742d14 100644
--- a/libsrc/c128/mcbdefault.s
+++ b/libsrc/c128/mcbdefault.s
@@ -1,5 +1,5 @@
 ;
-; Default mouse callbacks for the C64
+; Default mouse callbacks for the C128
 ;
 ; Ullrich von Bassewitz, 2004-03-20
 ;
@@ -48,6 +48,24 @@ VIC_SPR_Y       = (VIC_SPR0_Y + 2*MOUSE_SPR)    ; Sprite Y register
 
 .endproc
 
+; --------------------------------------------------------------------------
+; Draw the mouse pointer. Always called with interrupts disabled.
+
+.proc   draw
+
+        rts
+
+.endproc
+
+; --------------------------------------------------------------------------
+; Prepare to move the mouse pointer. Always called with interrupts disabled.
+
+.proc   move
+
+        rts
+
+.endproc
+
 ; --------------------------------------------------------------------------
 ; Move the mouse pointer X position to the value in a/x. Always called with
 ; interrupts disabled.
@@ -103,7 +121,7 @@ VIC_SPR_Y       = (VIC_SPR0_Y + 2*MOUSE_SPR)    ; Sprite Y register
 _mouse_def_callbacks:
         .addr   hide
         .addr   show
+        .addr   draw
+        .addr   move
         .addr   movex
         .addr   movey
-
-
diff --git a/libsrc/c128/mou/c128-1351.s b/libsrc/c128/mou/c128-1351.s
index ca165f5c3..881605d2d 100644
--- a/libsrc/c128/mou/c128-1351.s
+++ b/libsrc/c128/mou/c128-1351.s
@@ -50,6 +50,8 @@ HEADER:
 
 CHIDE:  jmp     $0000                   ; Hide the cursor
 CSHOW:  jmp     $0000                   ; Show the cursor
+CDRAW:  jmp     $0000                   ; Draw the cursor
+CMOVE:  jmp     $0000                   ; Prepare to move the cursor
 CMOVEX: jmp     $0000                   ; Move the cursor to X coord
 CMOVEY: jmp     $0000                   ; Move the cursor to Y coord
 
@@ -302,7 +304,8 @@ IOCTL:  lda     #<MOUSE_ERR_INV_IOCTL     ; We don't support ioclts for now
 ; MUST return carry clear.
 ;
 
-IRQ:    lda     SID_ADConv1             ; Get mouse X movement
+IRQ:    jsr     CMOVE
+        lda     SID_ADConv1             ; Get mouse X movement
         ldy     OldPotX
         jsr     MoveCheck               ; Calculate movement vector
         sty     OldPotX
@@ -389,8 +392,9 @@ IRQ:    lda     SID_ADConv1             ; Get mouse X movement
 
 ; Done
 
-        clc                     ; Interrupt not "handled"
-@SkipY: rts
+@SkipY: jsr     CDRAW
+        clc                             ; Interrupt not "handled"
+        rts
 
 ; --------------------------------------------------------------------------
 ;
diff --git a/libsrc/c128/mou/c128-inkwell.s b/libsrc/c128/mou/c128-inkwell.s
index dc3469aac..bed490d66 100644
--- a/libsrc/c128/mou/c128-inkwell.s
+++ b/libsrc/c128/mou/c128-inkwell.s
@@ -49,6 +49,8 @@ LIBREF: .addr   $0000
 
 CHIDE:  jmp     $0000                   ; Hide the cursor
 CSHOW:  jmp     $0000                   ; Show the cursor
+CDRAW:  jmp     $0000                   ; Draw the cursor
+CMOVE:  jmp     $0000                   ; Prepare to move the cursor
 CMOVEX: jmp     $0000                   ; Move the cursor to X co-ord.
 CMOVEY: jmp     $0000                   ; Move the cursor to Y co-ord.
 
@@ -343,7 +345,7 @@ IOCTL:  lda     #<MOUSE_ERR_INV_IOCTL     ; We don't support ioctls, for now
 ; MUST return carry clear.
 ;
 
-IRQ:
+IRQ:    jsr     CMOVE
 
 ; Record the state of the buttons.
 ; Try to avoid crosstalk between the keyboard and the lightpen.
@@ -441,7 +443,8 @@ IRQ:
 
 ; Done
 
-@SkipX: clc                             ; Interrupt not "handled"
+@SkipX: jsr     CDRAW
+        clc                             ; Interrupt not "handled"
         rts
 
 ; Move the lightpen pointer to the new Y pos.
diff --git a/libsrc/c128/mou/c128-joy.s b/libsrc/c128/mou/c128-joy.s
index 8845dd357..bc5f812cd 100644
--- a/libsrc/c128/mou/c128-joy.s
+++ b/libsrc/c128/mou/c128-joy.s
@@ -49,6 +49,8 @@ HEADER:
 
 CHIDE:  jmp     $0000                   ; Hide the cursor
 CSHOW:  jmp     $0000                   ; Show the cursor
+CDRAW:  jmp     $0000                   ; Draw the cursor
+CMOVE:  jmp     $0000                   ; Prepare to move the cursor
 CMOVEX: jmp     $0000                   ; Move the cursor to X coord
 CMOVEY: jmp     $0000                   ; Move the cursor to Y coord
 
@@ -302,7 +304,8 @@ IOCTL:  lda     #<MOUSE_ERR_INV_IOCTL     ; We don't support ioclts for now
 ; MUST return carry clear.
 ;
 
-IRQ:    lda     #$7F
+IRQ:    jsr     CMOVE
+        lda     #$7F
         sta     CIA1_PRA
         lda     CIA1_PRB                ; Read joystick #0
         and     #$1F
@@ -415,6 +418,6 @@ IRQ:    lda     #$7F
 
 ; Done
 
-@SkipY: clc                             ; Interrupt not "handled"
+@SkipY: jsr     CDRAW
+        clc                             ; Interrupt not "handled"
         rts
-
diff --git a/libsrc/c128/mou/c128-pot.s b/libsrc/c128/mou/c128-pot.s
index 595e33ac9..48562e96d 100644
--- a/libsrc/c128/mou/c128-pot.s
+++ b/libsrc/c128/mou/c128-pot.s
@@ -46,6 +46,8 @@ HEADER:
 
 CHIDE:  jmp     $0000                   ; Hide the cursor
 CSHOW:  jmp     $0000                   ; Show the cursor
+CDRAW:  jmp     $0000                   ; Draw the cursor
+CMOVE:  jmp     $0000                   ; Prepare to move the cursor
 CMOVEX: jmp     $0000                   ; Move the cursor to X coord
 CMOVEY: jmp     $0000                   ; Move the cursor to Y coord
 
@@ -297,7 +299,8 @@ IOCTL:  lda     #<MOUSE_ERR_INV_IOCTL     ; We don't support ioclts for now
 ; (so be careful).
 ;
 
-IRQ:    lda     #$7F
+IRQ:    jsr     CMOVE
+        lda     #$7F
         sta     CIA1_PRA
         lda     CIA1_PRB                ; Read port #1
         and     #%00001100
@@ -392,4 +395,7 @@ IRQ:    lda     #$7F
 ; Move the mouse pointer to the new X pos
 
         tya
-        jmp     CMOVEY
+        jsr     CMOVEY
+        jsr     CDRAW
+        clc                             ; Interrupt not "handled"
+        rts
diff --git a/libsrc/c64/mcbdefault.s b/libsrc/c64/mcbdefault.s
index 96c7c9ef4..ae61330d9 100644
--- a/libsrc/c64/mcbdefault.s
+++ b/libsrc/c64/mcbdefault.s
@@ -48,6 +48,24 @@ VIC_SPR_Y       = (VIC_SPR0_Y + 2*MOUSE_SPR)    ; Sprite Y register
 
 .endproc
 
+; --------------------------------------------------------------------------
+; Draw the mouse pointer. Always called with interrupts disabled.
+
+.proc   draw
+
+        rts
+
+.endproc
+
+; --------------------------------------------------------------------------
+; Prepare to move the mouse pointer. Always called with interrupts disabled.
+
+.proc   move
+
+        rts
+
+.endproc
+
 ; --------------------------------------------------------------------------
 ; Move the mouse pointer X position to the value in a/x. Always called with
 ; interrupts disabled.
@@ -96,7 +114,7 @@ VIC_SPR_Y       = (VIC_SPR0_Y + 2*MOUSE_SPR)    ; Sprite Y register
 _mouse_def_callbacks:
         .addr   hide
         .addr   show
+        .addr   draw
+        .addr   move
         .addr   movex
         .addr   movey
-
-
diff --git a/libsrc/c64/mou/c64-1351.s b/libsrc/c64/mou/c64-1351.s
index 0211ee20f..dbe8cc4d3 100644
--- a/libsrc/c64/mou/c64-1351.s
+++ b/libsrc/c64/mou/c64-1351.s
@@ -69,6 +69,8 @@ HEADER:
 
 CHIDE:  jmp     $0000                   ; Hide the cursor
 CSHOW:  jmp     $0000                   ; Show the cursor
+CDRAW:  jmp     $0000                   ; Draw the cursor
+CMOVE:  jmp     $0000                   ; Prepare to move the cursor
 CMOVEX: jmp     $0000                   ; Move the cursor to X coord
 CMOVEY: jmp     $0000                   ; Move the cursor to Y coord
 
@@ -314,7 +316,7 @@ IOCTL:  lda     #<MOUSE_ERR_INV_IOCTL     ; We don't support ioclts for now
 ; MUST return carry clear.
 ;
 
-IRQ:
+IRQ:    jsr     CMOVE
 
 ; Record the state of the buttons.
 ; Avoid crosstalk between the keyboard and the mouse.
@@ -417,8 +419,9 @@ IRQ:
 
 ; Done
 
+@SkipY: jsr     CDRAW
         clc                             ; Interrupt not "handled"
-@SkipY: rts
+        rts
 
 ; --------------------------------------------------------------------------
 ;
diff --git a/libsrc/c64/mou/c64-inkwell.s b/libsrc/c64/mou/c64-inkwell.s
index 070d8f108..a0c1182c9 100644
--- a/libsrc/c64/mou/c64-inkwell.s
+++ b/libsrc/c64/mou/c64-inkwell.s
@@ -49,6 +49,8 @@ LIBREF: .addr   $0000
 
 CHIDE:  jmp     $0000                   ; Hide the cursor
 CSHOW:  jmp     $0000                   ; Show the cursor
+CDRAW:  jmp     $0000                   ; Draw the cursor
+CMOVE:  jmp     $0000                   ; Prepare to move the cursor
 CMOVEX: jmp     $0000                   ; Move the cursor to X co-ord.
 CMOVEY: jmp     $0000                   ; Move the cursor to Y co-ord.
 
@@ -324,7 +326,7 @@ IOCTL:  lda     #<MOUSE_ERR_INV_IOCTL     ; We don't support ioctls, for now
 ; MUST return carry clear.
 ;
 
-IRQ:
+IRQ:    jsr     CMOVE
 
 ; Record the state of the buttons.
 ; Try to avoid crosstalk between the keyboard and the lightpen.
@@ -422,7 +424,8 @@ IRQ:
 
 ; Done
 
-@SkipX: clc                             ; Interrupt not "handled"
+@SkipX: jsr     CDRAW
+        clc                             ; Interrupt not "handled"
         rts
 
 ; Move the lightpen pointer to the new Y pos.
diff --git a/libsrc/c64/mou/c64-joy.s b/libsrc/c64/mou/c64-joy.s
index 08dad7b3c..ba22a0c95 100644
--- a/libsrc/c64/mou/c64-joy.s
+++ b/libsrc/c64/mou/c64-joy.s
@@ -68,6 +68,8 @@ HEADER:
 
 CHIDE:  jmp     $0000                   ; Hide the cursor
 CSHOW:  jmp     $0000                   ; Show the cursor
+CDRAW:  jmp     $0000                   ; Draw the cursor
+CMOVE:  jmp     $0000                   ; Prepare to move the cursor
 CMOVEX: jmp     $0000                   ; Move the cursor to X coord
 CMOVEY: jmp     $0000                   ; Move the cursor to Y coord
 
@@ -319,9 +321,11 @@ IOCTL:  lda     #<MOUSE_ERR_INV_IOCTL     ; We don't support ioclts for now
 ; MUST return carry clear.
 ;
 
+IRQ:    jsr     CMOVE
+
 ; Avoid crosstalk between the keyboard and a joystick.
 
-IRQ:    ldy     #%00000000              ; Set ports A and B to input
+        ldy     #%00000000              ; Set ports A and B to input
         sty     CIA1_DDRB
         sty     CIA1_DDRA               ; Keyboard won't look like joystick
         lda     CIA1_PRB                ; Read Control-Port 1
@@ -438,6 +442,7 @@ IRQ:    ldy     #%00000000              ; Set ports A and B to input
 
 ; Done
 
-@SkipY: clc                             ; Interrupt not handled
+@SkipY: jsr     CDRAW
+        clc                             ; Interrupt not "handled"
         rts
 
diff --git a/libsrc/c64/mou/c64-pot.s b/libsrc/c64/mou/c64-pot.s
index 3be0f4f3d..e7990b117 100644
--- a/libsrc/c64/mou/c64-pot.s
+++ b/libsrc/c64/mou/c64-pot.s
@@ -46,6 +46,8 @@ HEADER:
 
 CHIDE:  jmp     $0000                   ; Hide the cursor
 CSHOW:  jmp     $0000                   ; Show the cursor
+CDRAW:  jmp     $0000                   ; Draw the cursor
+CMOVE:  jmp     $0000                   ; Prepare to move the cursor
 CMOVEX: jmp     $0000                   ; Move the cursor to X coord
 CMOVEY: jmp     $0000                   ; Move the cursor to Y coord
 
@@ -297,7 +299,8 @@ IOCTL:  lda     #<MOUSE_ERR_INV_IOCTL     ; We don't support ioclts for now
 ; (so be careful).
 ;
 
-IRQ:    lda     #$7F
+IRQ:    jsr     CMOVE
+        lda     #$7F
         sta     CIA1_PRA
         lda     CIA1_PRB                ; Read port #1
         and     #%00001100
@@ -392,4 +395,7 @@ IRQ:    lda     #$7F
 ; Move the mouse pointer to the new X pos
 
         tya
-        jmp     CMOVEY
+        jsr     CMOVEY
+        jsr     CDRAW
+        clc                             ; Interrupt not "handled"
+        rts
diff --git a/libsrc/cbm510/mcbdefault.s b/libsrc/cbm510/mcbdefault.s
index a6504ae30..b156fdf2f 100644
--- a/libsrc/cbm510/mcbdefault.s
+++ b/libsrc/cbm510/mcbdefault.s
@@ -62,6 +62,24 @@ VIC_SPR_Y       = (VIC_SPR0_Y + 2*MOUSE_SPR)    ; Sprite Y register
 
 .endproc
 
+; --------------------------------------------------------------------------
+; Draw the mouse pointer. Always called with interrupts disabled.
+
+.proc   draw
+
+        rts
+
+.endproc
+
+; --------------------------------------------------------------------------
+; Prepare to move the mouse pointer. Always called with interrupts disabled.
+
+.proc   move
+
+        rts
+
+.endproc
+
 ; --------------------------------------------------------------------------
 ; Move the mouse pointer x position to the value in .XA. Always called with
 ; interrupts disabled.
@@ -125,7 +143,7 @@ VIC_SPR_Y       = (VIC_SPR0_Y + 2*MOUSE_SPR)    ; Sprite Y register
 _mouse_def_callbacks:
         .addr   hide
         .addr   show
+        .addr   draw
+        .addr   move
         .addr   movex
         .addr   movey
-
-
diff --git a/libsrc/cbm510/mou/cbm510-inkwl.s b/libsrc/cbm510/mou/cbm510-inkwl.s
index 8502a7034..3885dcba9 100644
--- a/libsrc/cbm510/mou/cbm510-inkwl.s
+++ b/libsrc/cbm510/mou/cbm510-inkwl.s
@@ -53,6 +53,8 @@ LIBREF: .addr   $0000
 
 CHIDE:  jmp     $0000                   ; Hide the cursor
 CSHOW:  jmp     $0000                   ; Show the cursor
+CDRAW:  jmp     $0000                   ; Draw the cursor
+CMOVE:  jmp     $0000                   ; Prepare to move the cursor
 CMOVEX: jmp     $0000                   ; Move the cursor to X co-ord.
 CMOVEY: jmp     $0000                   ; Move the cursor to Y co-ord.
 
@@ -336,7 +338,8 @@ IOCTL:  lda     #<MOUSE_ERR_INV_IOCTL     ; We don't support ioctls, for now
 ; MUST return carry clear.
 ;
 
-IRQ:    ldx     #15                     ; To system bank
+IRQ:    jsr     CMOVE
+        ldx     #15                     ; To system bank
         stx     IndReg
 
 ; Read the VIC-II lightpen registers.
@@ -428,7 +431,8 @@ IRQ:    ldx     #15                     ; To system bank
 
 ; Done
 
-@SkipX: clc                             ; Interrupt not "handled"
+@SkipX: jsr     CDRAW
+        clc                             ; Interrupt not "handled"
         rts
 
 ; Move the lightpen pointer to the new Y pos.
diff --git a/libsrc/cbm510/mou/cbm510-joy.s b/libsrc/cbm510/mou/cbm510-joy.s
index 43bd722f3..51bf6f42c 100644
--- a/libsrc/cbm510/mou/cbm510-joy.s
+++ b/libsrc/cbm510/mou/cbm510-joy.s
@@ -52,6 +52,8 @@ HEADER:
 
 CHIDE:  jmp     $0000                   ; Hide the cursor
 CSHOW:  jmp     $0000                   ; Show the cursor
+CDRAW:  jmp     $0000                   ; Draw the cursor
+CMOVE:  jmp     $0000                   ; Prepare to move the cursor
 CMOVEX: jmp     $0000                   ; Move the cursor to x co-ord.
 CMOVEY: jmp     $0000                   ; Move the cursor to y co-ord.
 
@@ -323,7 +325,8 @@ IOCTL:  lda     #<MOUSE_ERR_INV_IOCTL   ; We don't support ioctls, for now
 ; Reads joystick 2.
 ;
 
-IRQ:    ldy     #15                     ; Switch to the system bank
+IRQ:    jsr     CMOVE
+        ldy     #15                     ; Switch to the system bank
         sty     IndReg
 
 ; Get the direction bits.
@@ -430,7 +433,8 @@ IRQ:    ldy     #15                     ; Switch to the system bank
 
 ; Done
 
-@SkipY: clc                             ; Interrupt not handled
+@SkipY: jsr     CDRAW
+        clc                             ; Interrupt not "handled"
         rts
 
 ; Move the mouse pointer to the new x pos.