I have downloaded the software pack and when I plug my wired controller in almost everything works perfectly, BUT whenever I press the right trigger (left trigger too on some games, I've tried this with multiple games) the game just freezes, it won't unfreeze until I unplug the controller. This only happens during gameplay, pressing the RT any time where it won't register doesn't do anything.
It's a plug and play thing. I've never had such a problem plugging 360 controllers into my Win 7 machine or my HTCP Dell XPS machine. Could be another driver issue perhaps? Have you installed drivers for any other controllers?