diff --git a/res/ACTION.DHGR/_FileInformation.txt b/res/ACTION.DHGR/_FileInformation.txt
index d48054888..9b91c81a6 100644
--- a/res/ACTION.DHGR/_FileInformation.txt
+++ b/res/ACTION.DHGR/_FileInformation.txt
@@ -70,8 +70,6 @@ SUMMER.EDITION=Type(06),AuxType(3FF8),Access(C3)
 SUMMER.EDITION2=Type(06),AuxType(3FF8),Access(C3)
 SUMMER.EDITION3=Type(06),AuxType(3FF8),Access(C3)
 TECHNOCOP=Type(06),AuxType(3FF8),Access(C3)
-TECHNOCOP.AUX=Type(06),AuxType(3FF8),Access(C3)
-TECHNOCOP.BIN=Type(06),AuxType(3FF8),Access(C3)
 TETRIS=Type(06),AuxType(3FF8),Access(C3)
 TETRIS2=Type(06),AuxType(3FF8),Access(C3)
 TETRIS3=Type(06),AuxType(3FF8),Access(C3)
diff --git a/src/4cade.a b/src/4cade.a
index 9b14dcd5e..95d4350e2 100644
--- a/src/4cade.a
+++ b/src/4cade.a
@@ -1,5 +1,5 @@
 ;license:MIT
-;(c) 2018-20 by 4am
+;(c) 2018-2020 by 4am
 ;
 !cpu 6502
 !to "build/LAUNCHER.SYSTEM",plain
diff --git a/src/4cade.init.a b/src/4cade.init.a
index 3e6149135..b7ad24ea9 100644
--- a/src/4cade.init.a
+++ b/src/4cade.init.a
@@ -1,5 +1,5 @@
 ;license:MIT
-;(c) 2018-20 by 4am
+;(c) 2018-2020 by 4am
 ;
 ; first-run initialization code
 ;
diff --git a/src/hw.accel.a b/src/hw.accel.a
index 37c2fa2f7..e83e7e913 100755
--- a/src/hw.accel.a
+++ b/src/hw.accel.a
@@ -1,5 +1,5 @@
 ;license:MIT
-;(c) 2019 by 4am & qkumba
+;(c) 2019-2020 by 4am & qkumba
 ;
 ; Functions to enable and disable acceleration on various
 ; Apple II models, cards, and environments
diff --git a/src/hw.mockingboard.a b/src/hw.mockingboard.a
index b18fe4a9f..1281c575a 100644
--- a/src/hw.mockingboard.a
+++ b/src/hw.mockingboard.a
@@ -1,6 +1,5 @@
 ;license:MIT
-;(c) 2019-20 by Andrew Roughan, qkumba
-;   in the style of 4am for Total Replay
+;(c) 2019-2020 by Andrew Roughan, qkumba, 4am
 ;
 ; Mockingboard support functions
 ;
diff --git a/src/parse.prefs.a b/src/parse.prefs.a
index fad826e1e..42dc7da52 100644
--- a/src/parse.prefs.a
+++ b/src/parse.prefs.a
@@ -1,5 +1,5 @@
 ;license:MIT
-;(c) 2018-9 by 4am
+;(c) 2018-2020 by 4am
 ;
 ; Parser for global preferences file
 ;
diff --git a/src/prodos.path.a b/src/prodos.path.a
index 8602d0b07..9f65608ca 100644
--- a/src/prodos.path.a
+++ b/src/prodos.path.a
@@ -1,5 +1,5 @@
 ;license:MIT
-;(c) 2018-9 by 4am
+;(c) 2018-2020 by 4am
 ;
 ; ProDOS - functions for constructing and passing around ProDOS pathnames
 ;
diff --git a/src/ui.attract.dhgr.a b/src/ui.attract.dhgr.a
index dda45474b..cc027ba37 100644
--- a/src/ui.attract.dhgr.a
+++ b/src/ui.attract.dhgr.a
@@ -9,6 +9,8 @@
 ; - DHGRSingle
 ; - BlankHGR
 ; - HGRMode
+; - ForceHGRMOde
+; - DrawGameTitleInActionSlideshowHGR
 ; - RedrawForDHGR
 ;
 
@@ -108,9 +110,17 @@ GRMode
          bit   $C050
 DHGRRTS  rts
 
+;------------------------------------------------------------------------------
+; ForceHGRMode
+; if machine is in DHGR mode, switch it back to HGR mode
+; otherwise do nothing
+;
+; in:    none
+; out:   see BlankHGR
+;------------------------------------------------------------------------------
 ForceHGRMode
 gMachineInDHGRMode=*+1
-         lda   #$00
+         lda   #$00                  ; SMC
          bne   BlankHGR
          beq   DHGRRTS
 
diff --git a/src/ui.attract.gr.a b/src/ui.attract.gr.a
index 9c1bb5901..0b227706e 100644
--- a/src/ui.attract.gr.a
+++ b/src/ui.attract.gr.a
@@ -17,11 +17,11 @@
 ;        graphics mode set to display hi-res screen
 ;------------------------------------------------------------------------------
 GRActionSlideshow
-         jsr   .LoadGRTransition     ; load transition effect code at $6000
+         jsr   LoadGRTransition      ; load transition effect code at $6000
          jsr   BlankGR               ; switch GR mode with initial blank screen
          jsr   okvs_iter             ; cycle through all listed GR files
          !word gSlideshowStore
-         !word .GRActionCallback     ; address of callback (called on each file)
+         !word GRActionCallback      ; address of callback (called on each file)
          jmp   BlankHGR              ; switch back to HGR mode with initial blank screen on exit
 
 ;------------------------------------------------------------------------------
@@ -39,7 +39,7 @@ GRSingle
          !word kRootDirectory
 @fname   !word $FDFD                 ; SMC
          !word $6000
-         jsr   .LoadGRTransition     ; load transition effect code at $6400
+         jsr   LoadGRTransition      ; load transition effect code at $6400
          jsr   ExecuteTransitionAt6400AndWait
          jmp   BlankHGR              ; switch back to HGR mode with initial blank screen on exit
 
@@ -70,7 +70,7 @@ BlankGR
 ;        $6400..$BFFF/main contains transition effect code (probably not all
 ;        of that, but no promises)
 ;------------------------------------------------------------------------------
-.LoadGRTransition
+LoadGRTransition
          jsr   LoadFile
          !word kFXDirectory
          !word kGRFizzleFile
@@ -89,7 +89,7 @@ GRRTS    rts
 ;        $0800..$1EFF preserved (this contains the gSlideshowStore OKVS data)
 ;        $2000..$BFFF clobbered by graphics data and transition code
 ;------------------------------------------------------------------------------
-.GRActionCallback
+GRActionCallback
          bit   KBD
          bmi   GRRTS
 
diff --git a/src/ui.browse.mode.a b/src/ui.browse.mode.a
index af710e951..9c6d513f4 100644
--- a/src/ui.browse.mode.a
+++ b/src/ui.browse.mode.a
@@ -1,5 +1,5 @@
 ;license:MIT
-;(c) 2018-9 by 4am
+;(c) 2018-2020 by 4am
 ;
 ; Browse Mode - main UI
 ;
diff --git a/src/ui.common.a b/src/ui.common.a
index 522047407..a49cdbac3 100755
--- a/src/ui.common.a
+++ b/src/ui.common.a
@@ -1,5 +1,5 @@
 ;License:MIT
-;(c) 2018-9 by 4am
+;(c) 2018-2020 by 4am
 ;
 ; miscellaneous UI functions
 ;
diff --git a/src/ui.font.a b/src/ui.font.a
index e11331067..5d28cbc8b 100644
--- a/src/ui.font.a
+++ b/src/ui.font.a
@@ -14,7 +14,6 @@
 ; - DrawBuffer
 ;
 
-         ; /!\ execution falls through from ui.attract.hgr/HGRActionCallback
 DrawString
          jsr   SwitchToBank2
          jsr   DrawStringInternal
diff --git a/src/ui.font.lc2.a b/src/ui.font.lc2.a
index 95f322aca..c0807c7be 100644
--- a/src/ui.font.lc2.a
+++ b/src/ui.font.lc2.a
@@ -1,5 +1,5 @@
 ;license:MIT
-;(c) 2018-9 by 4am
+;(c) 2018-2020 by 4am
 ;
 ; hi-res font drawing routines
 ;
diff --git a/src/ui.overlay.a b/src/ui.overlay.a
index 178316e2d..e57fc5489 100644
--- a/src/ui.overlay.a
+++ b/src/ui.overlay.a
@@ -1,5 +1,5 @@
 ;License:MIT
-;(c) 2018-9 by 4am
+;(c) 2018-2020 by 4am
 ;
 ; routines for drawing the UI overlay (search bar, browse bar, instructions, cheat mode)
 ; on top of whatever else is on the screen
diff --git a/src/ui.search.mode.a b/src/ui.search.mode.a
index 2ca5efc79..4209b90dd 100644
--- a/src/ui.search.mode.a
+++ b/src/ui.search.mode.a
@@ -1,5 +1,5 @@
 ;license:MIT
-;(c) 2018-9 by 4am
+;(c) 2018-2020 by 4am
 ;
 ; Search Mode - main UI
 ;
diff --git a/src/ui.wait.a b/src/ui.wait.a
index 97323b69c..14ee5e87d 100644
--- a/src/ui.wait.a
+++ b/src/ui.wait.a
@@ -1,5 +1,5 @@
 ;License:MIT
-;(c) 2018-9 by 4am
+;(c) 2018-2020 by 4am
 ;
 ; UI functions for doing things then waiting, or waiting then doing things
 ;