My computer only works in Safe Mode now.

[Jessweeee♪]

If I start it up normally, it becomes unresponsive after about 5 minutes. Absolutely everything but the mouse is frozen, and the mouse doesn't change to like "busy" or anything, only moves around. It happens suddenly, I'll be browsing the internets SUPER FAST no problems, then BAM brick wall.

It did this last winter, and eventually the screen wouldn't even come up. We sent it in to a shop, and they said they couldn't figure out what was wrong. We shipped it to someplace in Kentucky and it came back working perfectly, but they didn't tell us what was wrong with it or what they did to get it to work.


I am at a complete loss here, any ideas?


EDIT:


THIS IS SO ANNOYING >.<

My browser closes every two minutes because my mouse just flies to the corner of the screen when I click something!