Please help!!! I am running a home built 1.8 gig, 512 ram P4 XP machine that has worked fine for two years. Now it started restarting itself after only two minutes. Not enough time to get to system restore. But wait it gets better. Now it won't even get that far. It gets to the screen to pick last good config. Anything I try does not work. I get a boot failure black screen. If I hit f8 during intel screen I have no option to boot from cd-rom, only hard drive and intel motherboard boot. Any ideas?