OK, I have encountered a problem that i have never before seen. My friends comuter is a compaq presario laptop. It is running on Windows XP. When it loads it will get to the loading screen, but then it will lag on the loading screen and restart. I restart in safe mode and the drivers load up until AGP440.sys, then it freezes and doesn't load anything else. I can't just reformat the drive because all of their papers and other schoolwork is on the hard drive. If anyone can help me, i would greatly appreciate it.