ETC ION 20 XE enconders, Central Console Hard Keys block and Go Button disabled?

 I lost complete control over all enconders, playback button (GO) and the central block keys (above the central wheel) of the console; these keys are all off when normaly they are highlighted.  All of these functions just stoped working. I don´t know if it was a coicidence but these happened when i was adding a second monitor to my system. Is there any chance that i have disabled this functions accidentally? 

Anyone can help me?

Tank you very much 

Manuel Martins

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