EPIC producing lots of fantasy nqw-events?!?

Dear EPIC users,Some days ago, my EPIC USB stopped working the way I want. Although I programmed several nqw-events to be received by FS Communicator, they don't work any more. Instead, every nqw-assigned button produces this output in FS Comm:14:24:19/Epic Queue included 4 Events !14:24:19/Received Nqw ( 24 , 0 ) from Hardware.14:24:19/Received Nqw ( -40705 , 0 ) from Hardware.14:24:19/Received Nqw ( -37376 , 0 ) from Hardware.14:24:19/Received Nqw ( -40800 , 0 ) from Hardware.14:24:18/Epic Queue included 4 Events !14:24:18/Received Nqw ( 24 , 0 ) from Hardware.14:24:18/Received Nqw ( -40705 , 0 ) from Hardware.14:24:18/Received Nqw ( -37376 , 0 ) from Hardware.14:24:18/Received Nqw ( -40800 , 0 ) from Hardware.14:24:17/Epic Queue included 4 Events !14:24:17/Received Nqw ( 24 , 0 ) from Hardware.14:24:17/Received Nqw ( -40705 , 0 ) from Hardware.14:24:17/Received Nqw ( -37376 , 0 ) from Hardware.14:24:17/Received Nqw ( -40800 , 0 ) from Hardware.Every Button produces exactly the SAME output!! In order to encircle the error, I used another EPIC USB, exchanged the 2 expansion boards with each other and tried new (more simple) projects. Always the same result :-( I'm finally convinced that this must be some kind of hardware error (or EEPROM-related?).Does anybody have a clue on what I can do? Thank you very much for your help!Best regards,--guru