[Rainypuff]

Recently, while I'm on the internet, my computer randomly freezes and I have to restart it. This keeps happening more and more frequently. When it freezes, it's the whole computer - cursor, keys, programs, the numlock button doesn't respond, if I was in the middle of playing a video then it goes into broken-record mode, etc.

The thing is, my warranty JUST ran out. Go figure.

The programs I'm [usually] running when this happens are Digbsy and Google Crome.

Here's some info:
Operating system: XP
My internet browser is Google Crome, but Firefox and Internet Explorer are also installed.
IM programs: Digbsy and AIM
Antivirus: Windows Live Onecare (Norton was installed, but I just uninstalled it to see if it was conflicting... didn't fix the problem)
I have a lot of sims2 games installed, but they run just fine. I have various other programs also.

I've done disk defragmenting, and run scans for malware/adware/spyware, and it's in the process of the Diagnostics test.
It came up with these error messages:
2000-0333 Graphics test timed out waiting for keyboard response ((this one followed the screen going all colorful and flashy and crazy and the computer was beeping like a mad thing))
0F00:137B DVDRW_4 - Drive media is missing or blank

I don't know what either of these mean... ...vaguely, I think I do, but I probably don't.

The only other program I've had with this computer is back when I first got it about a year ago, whenever I tried running this one program that worked fine on my other computers, it would go to the blue screen. The Dell support and the program's support team were both unable to fix my problem, so I just uninstalled the program and went on with my life.