I'll give it a shot.  Thanks....

You know, I kind of thought the amp was kicking into Manual mode; but in manual mode the A,B,C,D button lights aren't on.  When I did the test you specified, the "A" light was on.  Do you still think it's in manual mode?  If so, how do we fix that?

-Butch

Just got off the phone with Line 6 tech support.  They say internal hardware problem.  Not good.  My only amp and every service center I know of has a 3-week back up.  The cost of even just looking at an amp is higher than I can afford.

The bright side is that in manual mode it sounds awesome.  The only thing I need is a distortion pedal.

Reviving and old thread for a situation that is finally resolved.  I decided that, while my amp was "broken" and awaiting a trip to the service center, I would fallback to flash bios version 1.00.  I liked the tones better anyway.  Low and behold, the problem is now resolved.