I have p4,1.8ghz,xp,sp2,768mb ram.I had nvidia 64 pre-installed, replaced it with radeon 9600 128 agp, had problems, so I deleted all drivers for the radeon and re-installed the nvidia. At bootup it stalled on starting caldera dr dos.. I rebooted and was able to get to bios screen but it goes back to caldera dr. please help!
