I spent a little time on the trainer this AM; just enough to remove yesterdays damage. Anyway, when I finished, I noticed my bike computer was displaying 15 MPH. The front wheel was not turning at all. ??? I turned the volume down on my MP3 player to force prodigy to the back of my mind and allow some CPU time for figuring out what the heck is going on. As I decreased the volume, my speed increased to a very impressive 73 MPH. Problem resolved.