Annoying computer crash with pic

[torkaz2k13]

Aion seems to be the only game im having this problem with quite often.. Computer kinda just freezes and shows this:



Any ideas what might be causing this? I have an AMD Radeon HD 6700 card.

(If you zoom in the pic you can actually see red and black vertical lines)

Thanks

 

[AntiZig]

My guess would be overheating