Arrow keys do weird things

[TranquilRed]

Sometimes when I press one of the arrow keys, weird things happen. When I press the left arrow key randomly it will not function as it should and if I'm chatting or editing text then it inputs the letters "bn", the same thing happens with the right arrow key except with "/gh". I can't figure out what would even cause this. I have a Saitek Gamer's Keyboard, and the problem persists even after a format (this isn't why I formatted). I have the latest Saitek drivers installed, and it occurs even without them. It happens at random intervals, and usually goes away after a little while, but sometimes will completely disable one of the arrow keys. What the hell can I do to fix this?

 

[engiNURD]

Does it do that on another system? If so, looks like you need to replace it.