So I have an HP zd8000 notebook, I have had it for 4 years and has been running fine, but one day out of the blue windows (XP) will not reach the login screen, goes black followed by a blue screen and a restart with the error code claiming an infinite cycle and the ati2dvag error. I did a fresh reformat on the computer and everything worked fine until I downloaded the new driver for my mobility x600 256mb, I tried everything I could think of. I DLed mobility modder, modded catalyst but had the same problem after the restart. Black screen. Uninstalled the driver and will boot again. What is going on with my video card? did it get damaged? am I not updating something properly? Is there something I am forgetting to do? heres my process -start windows without Display driver -install display driver (latest catalyst (modded with mobility modder)/Latest Omega driver) -restart computer to take effect -windows load screen takes longer than usual goes black and I get an error screen (blue screen of death) with ati2dvag code -turn off computer -start in safe mode -uninstal driver from hardware panel and add/remove programs. -restart windows -try again... I just can't figure this out. the driver worked for years and one day it decided not to. Does anyone have advice?