gully,

Did you download any software updates recently? By any chance did one of those include a Firmware Update? If so, then there is a procedure to get it installed on Apple's web site. I don't remember most of it, but I think you have to press a couple of buttons to initiate the process. I think that's why you have that symptom. Let me double check, just in case.

73s de Phreakout. :rambo: