Hey, I'm new to this sight, and i was just wondering if you guys could help me with a problem im having?

I got the blaster worm virus (I think that's the name) and i ended up having to format everything using my xp disk.
When i got everything up and running i still had: no sound (if i have integrated and pci sound do i have to select one to run off of before it will recognize the device?) and my video card bugs out like once an hour and i have to turn my comp off with out shutting down... any ideas on how to help me get my sound and video working properly?

Thanks
Buy_Food