This problem started about a week and a half ago. I don't remember installing ANYTHING new, but that doesn't mean that I didn't...bad memory. I was having trouble closing tabs in Internet Explorer immediately before this started HAPPENING. I would attempt to close a tab and it would freeze the screen for a few minutes. I didn't have a problem closing the whole window.

After rebooting, my computer gets to the desktop and immediately restarts.

My specs are:
Windows XP Service Pack 2
Internet Explorer 7
Gateway computer

I can start the computer in safe mode without it rebooting. The FAQ section said that this means it is a software problem. I'm decent with computers, but I have no experience troubleshooting software.

I would be grateful for any help. Let me know if you need more info as well.
Do you have Windows XP CD?I'm PRETTY sure I don't.It may be overheating (did you check your computer temps? did you clean your computer inside using compressed air), bad RAM (try to re-seat it; if you have more, then 1 RAM stick, try to start computer with one stick at a TIME), video card (if you have separate video card, try to re-seat it)