i have the same gamepad like you but dont have any problems with it?
maybe downloading the new driver from the logitech website may help u?
Antec 900 - Asus P5K-E Wifi/AP - Intel Q6600 @ 3.00Ghz - 4GB DDR2 Kingston - Evga 8800GT Superclocked - G15 - G5 - Everglide Titan Mousepad