Hi everyone,
I have a 2 year old PC that I built myself. I can’t seem to figure out why it keeps freezing. Here is what I have noticed:

1. The system freezes randomly. (example: sometimes it freezes 10 minutes after startup and sometimes it freezes after several days of being on)

2. When I run Ubuntu and BackTrack2 from a LiveCD the system does not freeze at all. I have tested this up to 3 days without a lockup.

3. Vista was installed recently with all updates downloaded and virus scans/spyware and malware checks daily.

I’m not sure what troubleshooting steps can be done to solve this issue. I am a fairly technically savvy person so advanced troubleshooting tips are welcomed. I also want to mention that I do not want to buy a new computer or switch to Mac or get flamed or anything. Only constructive answers are welcome here. Thanks for all of your help!