Hi All, Hopefully I've not missed anything here (searched etc.) When I try the typing into the cdu, the commands are going straight back to FSX - e.g. B key, just sends the FSX reset baro command. I have the green rectangle around the CDU scratchpad however, it's like it's slowing flashing? Still no key strokes are hitting the CDU. Thanks Carl BeebyNothing like partly-solving after you post is there, eh? :) Just redocked the CDU with the green box over the scratchpad and undocked it and now it works. However, if i move out of FSX and then back in I have to dock and undock again.... Carl

Hold 'TAB" a green bar will appear in the CDU. Then you should be clear to use keyboard text.

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CDU input works absolutely fine when docked, problem appears when the CDU is undocked Thanks Carl