I installed the XBCD Xbox 360 drivers. Everything things to be working fine button-wise in Project 64. Yet, I fail to have any rumble. The plug-in seems to recognize that the controller can do it because the rumble selection buttons under 'Devices' aren't grayed out. When I do mess with the options and try to get it going, I get absolutlety no vibration feedback when playing a game. Any suggestions?