I have a G5 dual 2.0 radeon X800AGP and a 17" ACD hooked up via ADC, just recently after u upgraded to 10.5.8 i started getting funny hashes on the screen, they seem to be connected to the application, not the screen or the OS. when i move whatever window they're on, the hashes move too. when i close the window they close too. here's what i've tried 1. blow out computer and video card. 2. remove card, clean pins and reseat. 3. try different monitor (shows up there too) 4. reinstall and update 5. reinstall and not update 6. change resolutions 7. ATI driver install (10.4 one) is there anything that i am missing or should try. it doesn't seem to be heat related.