WHoa.... I'm at my father's house trying to fix his computer and this is the wierdest thing I've ever seen.... G4 450mhz (agp graphics) 10.2.6 512 RAM 21" Studio display All peripherals disconnected PRAM zapped (several times) Permissions repaired Disk verified The only login item is transport monitor Ok. Computer boots up fine. Display appears fine as computer loads Jag (blue backround and everything appears fine). Then, all of the sudden, a half second after the desktop picture loads, the display appears to freak and suddenly is practically ALL BLACK with little red highlights around what would be the darkest parts of each icon and the text. It's frightening! So... Open up "Displays" in the preferences and the monitor has reverted to 256 color mode but retains all other settings that were there prior to restart. So... Change it to millions of colors and the screen now displays a NEGATIVE desktop (ie where the windows would show white with little blue horizontal lines, it now shows blue with little white horizontal lines), which is much more readable than what happens after login. Now, if I restart, it goes back to the black with red highlights and 256 colors. Problem with the monitor? Well... It gets better. My father recently installed a second harddrive on this machine, which has a relatively fresh copy of Jag. When I boot off of that volume, it works just fine! I've tried looking for some custom theme altering programs that might be causing the problem but I can't find any (perhaps I'm looking in the wrong place?). Evidently the computer was working fine until yesterday, then it went to sleep (as usual), and then upon waking it up, the problem started I'm perplexed!