Any ideas/help? Computer resets without warning

[winstonbike]

So this has beenhappenning for about a week. I will boot up Agent newsreader and start it running - it will go for maybe 5 minutes and *click* the comupter resets itself. I have been using photoshop, dreamweaver, Word, explorer, firefox, etc. fairly heavily for long periods and it ONLY happens when Agent is run.

So then I tried Newsleecher, and it did the same thing.

What can I do to see where the problem lies - is it some kind of harddrive thing? I can't believe its a temperature issue when I run photoshop for a few hours and nothing happens.

Any suggestions? Test programs I can run that may help? Thanks

 

[winstonbike]

Bueller?

 

[Somniferum]

Try XNews?

 

[vj8usa]

Disable the automatic restart option for system failures (assuming you're using XP, and you haven't done this already) and see if you get a BSoD.