Yea, i dont get this on my spare x52pro, works perfectly, but it is plugged directly into the computers USB slots. My Cougar works perfectly also...only thing to do is, try a few different USB ports, one might have a dodgy connection or something.
Also just thought, you know the cable that links the throttle and stick, make sure these are pushed all the way in, and make sure half way through gaming they dont come loose, ive heard of that happening with the 52's