Macbook Pro WASD keys sticking in games?

[jkasapi]

So when playing games i randomly get it that one of the WASD keys will stick in game, the camera/character will move in that certain direction and i wont be able to stop it for a random period of time. The thing is the key isn't literally sticking on the laptop, and it only happens in a game, i have never seen "wwwwwwww" "aaaaaaaa" ect.

Does anyone know what could be causing this?

Macbook Pro
10.8.3

 

[maflynn]

dirty or defective keys is what comes to my mind.