I will try this. Thank you. Will let u know the next time it happens. Or I should say, praying it doesn't happen! LOL Merry Christmas!
That alone, will most likely not solve your problem, but it should stop the automatic reboot. If you get a blue screen, write down the stop code, and you will have to search for it on the web. Most likely you have corrupted system files of some sort, and will have to find a way to restore, like from the CD to repair-install.