Keyboard Lag during games...

I just got a wireless  keyboard today and I whenever I'm playing a game the keyes  seem to lag its most noticable in FPS's (I tried TF2, CSS,  and Fallout 3) this

seems to occur when ever I have to hold a key down for more than several seconds... then I just stop, and a few seconds later good to go... this is horribly

annoying, any help at all would be greatly appreciated, thanks. btw its a wireless microsoft keyboard.                        

It's the wireless, be it infrared or bluetooth....they both suck for games. Get a good Logitech G11 or G15....FelipeInside