08-31-2012, 06:15 PM
Have you zapped the PRAM?
And this is just a WAG that somebody knowledgeable could debunk:
My buddy's G4 iMac had some weird video artifacts, far worse than yours. They exactly mirrored those of my Cube's video card, down to the square of contrasting artifacts that replaced the cursor. My Cube's card had bad caps.
I replaced his PRAM battery and all was good as new.
The current PRAM info is different, but zapping it *might* help, maybe?
And this is just a WAG that somebody knowledgeable could debunk:
My buddy's G4 iMac had some weird video artifacts, far worse than yours. They exactly mirrored those of my Cube's video card, down to the square of contrasting artifacts that replaced the cursor. My Cube's card had bad caps.
I replaced his PRAM battery and all was good as new.
The current PRAM info is different, but zapping it *might* help, maybe?