diff --git a/applecorn.po b/applecorn.po
index 3bc9804..67f1873 100644
Binary files a/applecorn.po and b/applecorn.po differ
diff --git a/auxmem.shr.s b/auxmem.shr.s
index a163c77..2e285fa 100644
--- a/auxmem.shr.s
+++ b/auxmem.shr.s
@@ -621,7 +621,10 @@ SHRCLEAR      PHP                          ; Disable interrupts
 
 * Set text colour
 * A=txt colour
-SHRSETTCOL    PHA
+SHRSETTCOL    BIT   VDUBANK                ; Check it is a GS ..
+              BMI   :GS                    ; .. easier to check here
+              RTS
+:GS           PHA
               LDX   VDUPIXELS              ; Pixels per byte
               CPX   #$02                   ; 2 is 320-mode (MODE 1)
               BNE   :MODE0
diff --git a/mame_applecorn b/mame_applecorn
index a21de9b..05ac8af 100755
--- a/mame_applecorn
+++ b/mame_applecorn
@@ -1,2 +1,2 @@
-#mame -w apple2ee -debug -sl5 mouse -sl7 cffa2 -harddisk1 ~/Personal/Development/Applecorn/applecorn.po
-mame -w apple2gs -debug -sl7 cffa2 -harddisk1 ~/Personal/Development/Applecorn/applecorn.po -harddisk2 tests/JGHMusic2.po
+mame -w apple2ee -debug -sl5 mouse -sl7 cffa2 -harddisk1 ~/Personal/Development/Applecorn/applecorn.po
+#mame -w apple2gs -debug -sl7 cffa2 -harddisk1 ~/Personal/Development/Applecorn/applecorn.po -harddisk2 tests/JGHMusic2.po