[PROBLEM] Dont work w+a/d combination

Hi!

I havea problem... Dont wrok for me this combination: w+a or w+d..
When i press the W, and i like to press the a/d , the pc is go to forward, and dont go to forward left/right...

Morning work for me the cs, but now dont work... Why is the problem ? Pls help..

Z..

I dont can help you. I can only say that you can reinstall CS.S to fix this Problem.