Thanks Ice.
I downloaded the DOS virus scanner earlier, ran it and was told that the drive wasn't ready (or something to that effect), and that the PAGEFILE.SYS was being used by another application. I ran it again in Safe Mode and got the same message. I don't know it that's meant to came up, but it did say it found no virus.
I'll get around to the RAM checker in the morning when I'm thinking a little better.
The computer restarted on me again about 15 mins ago. I sent the error report and was sent to this microsoft page:
http://oca.microsoft.com/en/response...9afa76c&SID=10
Originally a few people suggested that problem, but I don't know how to check the device drivers to see what's right and what isn't.
