first sorry for my bad english, I am german

My System:
Toshiba Satellite L500-208
Intel core i5 2.27GHz
4GB RAM
64Bit-System
Ati mobility Radeon HD 5165
15,6"- Screen
There are strange "red" lines everywhere. Same thing when playing Butlletstorm. I didn′t find any solution for this.
http://s14.directupload.net/file/d/2715/llt3a8im_jpg.htm
Thank you for your help