I am afraid that i was too eager

i've bought the g940 at 28.09.09 and already it seems that the potis in the rudder pedals are giving jumping output.
When i use right rudder in combination with brakes the pedals give me max. 10% when there should be 100%.
The fault is also visible in the game controller test window.
I have the actual software 5.08 64 bit and i'm using win7 64 bit.
Lets see what Logitech says to that.
btw, i've used my saitek pedals for over a year with no probs.