My N64 USB controller was working fine until my computer crashed. After crashing, I restarted my computer to see a strange green box appear once I reached my desktop, then shortly disappear. I never saw the green box again and I've had no other problems besides the fact that my N64 controller is now dysfunctional. When playing games, button presses often do nothing, and the controller sometimes disconnects and then reconnects a couple seconds later. I tried using different USB ports, but the result is always the same. What's wrong?