Expansion Wing Problem!

Yesterday during my show, my expension wing has gone crazy!

The fader-section on the left decided to switch all the buttons.
So, the choose-button became the flash-button of the fader on its left. The play-button became the choose-, the pause- became the play-, and the flash- became the pause-button.

I switched the wing on and off, no results. I switched the wing-section off and on in the control-panel, no results.

Can I solve this myself or do I have to send it back to the light-company to fix it?
I have my next show on monday, so I need to fix it, or arrange me another wing.

Gr
Pim
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