diff --git a/images/apple/PLEIADES-2.21.po b/images/apple/PLEIADES-2.21.po
index ecbc5aab..e6f31bbb 100644
Binary files a/images/apple/PLEIADES-2.21.po and b/images/apple/PLEIADES-2.21.po differ
diff --git a/src/inc/mouse.plh b/src/inc/mouse.plh
index defda2ca..0df8f2fb 100644
--- a/src/inc/mouse.plh
+++ b/src/inc/mouse.plh
@@ -2,19 +2,23 @@ import mouse
     //
     // Status bits
     //
-    const BUTTON_DOWN      = $80
-    const BUTTON_LAST_DOWN = $40
-    const MOUSE_MOVED      = $20
-    const VBL_INT          = $08
-    const BUTTON_INT       = $04
-    const MOVE_INT         = $02
+    const BUTTON_DOWN       = $80
+    const BUTTON0_DOWN      = $80
+    const BUTTON_LAST_DOWN  = $40
+    const BUTTON0_LAST_DOWN = $40
+    const MOUSE_MOVED       = $20
+    const BUTTON1_DOWN      = $10
+    const VBL_INT           = $08
+    const BUTTON_INT        = $04
+    const MOVE_INT          = $02
+    const BUTTON1_LAST_DOWN = $01
     //
     // Mode bits
     //
-    const VBL_INT_ENABLE   = $08
-    const BUTTON_INT_ENABLE= $04
-    const MOVE_INT_ENABLE  = $02
-    const MOUSE_ENABLE     = $01
+    const VBL_INT_ENABLE    = $08
+    const BUTTON_INT_ENABLE = $04
+    const MOVE_INT_ENABLE   = $02
+    const MOUSE_ENABLE      = $01
     //
     // Mouse API
     //
diff --git a/src/libsrc/apple/mouse.pla b/src/libsrc/apple/mouse.pla
index fe539080..2d906c32 100644
--- a/src/libsrc/apple/mouse.pla
+++ b/src/libsrc/apple/mouse.pla
@@ -31,7 +31,7 @@ end
 asm vblEvent
         INC     VBLINT          ; INC VBL EVENT
 +       TYA                     ; MOUSE MOVE OR BUTTON ACTIVE
-        AND     #$82
+        AND     #$92
 end
 asm bttnEvent
         EOR     LASTBTTN
@@ -40,7 +40,7 @@ end
 asm mouseEvent
         INC     MOUINT          ; INC MOUSE EVENT
 +       TYA
-        AND     #$80
+        AND     #$90
 end
 asm updateBttn
         STA     LASTBTTN