What's wrong with my computer?

[raspberihevn]

Lately my computer screen has been jumping like this
http://www.youtube.com/watch?v=_TzWh5Kg8fs

I was wondering if something can be done to prevent this from occurring?

 

[SorryImLate]

Is it a laptop or desktop? I would first say your onboard video or graphics card is going out or its overheating. Can you post the specs of your computer on here for everyone to see. The more info the better everyone can help you.