I've got a irritating problem on my laptop. It freezes for a couple of seconds, and gives me error messages indicating I've experienced a problem. My laptop was first installed with ubuntu 11.10, and upgraded to 12.04 and now 12.10. I've only been experiencing this problem for a week or two.

Here's a link to my computer specs: http://www.cnet.com/laptops/acer-asp...-35279962.html

And here's an album with screenshots of the error messages: http://s982.beta.photobucket.com/use...ry/Gpu%20Error