Well that's something. It shouldn't be. This probably sounds like a hassle, but what about doing a complete re-install and not bothering with bluetooth from the get go and just doing pure USB? The problem might be from switching between an incompatible bluetooth and the USB driver. On the driver page there's an "install all" button. Tried that? Also "load driver" on that page. Anyways, yeah, maybe try an uninstall (and that rollback button) if nothing works. After all, I see no reason why it shouldn't work over USB and you shouldn't have to spend money on a new controller.