Hmm indeed. File this one under "Go figure". That solved it. Now on to the MBP.

Guess I should've checked the Apple support pages first. But then, you'd be out of a job! grin

Reminds me of the time (back in the early 90's) I was having problems with my Amiga (no snickering, please). When I got to the service center with the machine, the problem was gone. The tech said, "Sometimes they just wanna go for a ride." laugh