About a month ago, I started having trouble with my iMac G5: there seemed to be a pink grid all over the screen and the computer had trouble booting past the user login screen. When it did, the pink grid would be all over the place and a lot of the visuals would be screwy (transparency, etc.). However, when moving from "millions" of colors to thousands, the effect was not all over the screen, confined to the taskbar and icons. Pink grid: Transparency problem: If I started it safe mode and turned the display to thousands of colors, the problem pretty much went away (all the visual effects were there) except for one specific thing with the pointer in MS Office. I was wondering if anyone knew what the heck was going on, what I could do? I figured that if the problem shows up on a screenshot it's probably software-related, no? Help please!