Hi Bob.

I wonder why you did receive no reply yet, so I'm trying to fill that gap.

The problem you describe sounds like a hardware issue to me. If it were software, it would have to be in the very low level kernel driver, which sounds almost impossible to me (as you are the first one to report this kind of problem). Also, the fact that it occured all of a sudden contributes to that conclusion.

Contact [email protected] to check with the real hardware guys.

cu,
sven