OK, I've pulled out most of my hair by now!\n\nBreathe... breathe...\n\nOK, I'm back.\n\nA client asked me to look at his *extremely* slow Dell Dimension 8200\ndesktop. I noticed that the 120GB hard drive had about 1GB of free\nsapce! After copying 60GB of photos to an external hard drive and then\ndeleting the files to get some breathing room, I rebooted to see how\nthings were.\n\nDefinite improvement. Of course McAfee wouldn't shut up (I told him\nthere are far better AV progs available) and the PC hung. Mouse and\nkeyboard locked up. I couldn't do anything. I pushed in the power\nbutton since there was no other way to reboot.\n\nThat's when the problems started. PC won't boot in Regular Mode. The\nloading bar stops moving and freezes. Can't boot using LKGC. When\nchoosing Safe Mode or Safe Mode with Command Prompt, PC freezes while\nloading agp440.sys. When I boot off an XP installation CD, that\nfreezes at the "Setup is Starting Windows XP" message.\n\nDell diagnostics doesn't show a bad hard drive. Could the mobo have\nbeen damaged?\n\nHelp!