Installing xp on sys based on Abit kg7, athlon xp 1600, maxtor hdd, msi GF3 ti200, cheap sound card (PCI 4) motarola modem (pci 6). Doing it bit by bit, get to put modem in, xp installs it fine, and I connect fine. Reboot after conecting cdrw and it goes haywire. Windose says found new hardware, pci card, it turns out this is the modem? which win now thinks isnt attached to pc. OK, try variously to reinstall modem and it just aint having it. Eventualy win stops booting. Take out modem. Remove it from device mngr etc. PC boots fine. Remove sound card, but dont uninstall it. Add modem back to slot 6, installs fine works fine. Put sound card back in and it just continues working. Fine, no probs. What the hells happened there? So I start listening to a cd and surfing and lol: perhaps not so good after all, after about 5mins of this the pc locked up completly and I had to use reset switch. Then unit wouldn boot in to win. Forced an ECSD update in bios and turned off fast writes and then it booted ok, but am at a loss really. Again listening to music and surfing and pc locksup, also automatically goes into bios after reboot. I can guess the area of prob but can somone please help to solve it!! (I've got sound card in pci 2 now but still same probs.)