Well, I can tell you this:
To change the graphic pointer (?) - POKE 53272,x
To change the screen to multicolor - POKE 53265,x
The C64 has 4 pages that can display a screen using this location - POKE 56576, x
where 'x' is 0, 1,2 or 3.
I know for Doodle! pictures I use these:
POKE 53272,120:POKE53265,59:POKE56576,2
You can make a search by typing:
10 POKE53265,59: POKE56576,2: FOR T=0 TO 255: POKE53272,T: FOR R=1 TO 100:NEXT: NEXT
This will cycle through all the possible screen settings. If nothing comes up, try changing the 56576 location.
Exit!
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