I have a home built computer. Abit BX-6 R2 MD, Celeron 333 Slot One(Not OC), 256 MB Ram, STB Nitro AGP Video, Acer 56K Modem, D-Link NIC, Creative Audio PCI 64, Toshiba DVD, TEAC 16X CDRW, WD 13.6GB HD, Intel PC Camera ISA Card. Everything works fine except if you bump the computer or tilt it, it will either lock up, restart or just turn off. Any ideas? All help will be appreciated.