I recently built a computer for my family, an Athlon 800 with an Abit Ka7-100 mobo, SB Live!, 128 MB ValueRAM, Trident 4MB PCI Vid card, 10x DVD, and 8x Cd-R. I installed Norton AntiVirus last week, and I don't know if it has anything to do with this, but my computer is hard locking whenever I...