Why is it that, on my system, the MCP and EFIS keyboard commands work for everything except "A" turn it on and "Tab A" turn it off!! "CMD A" (MCP) will turn on and off with a mouse click but not with the keyboard commands.(same for CMD :( This of course becomes important when adding an expensive external MCP which needs these commands to communicate with PMDG. I must be missing something easy here but what is it? All other commands LVL CH, VNAV, Speed, N1 etc work perfectly with keyboard commands and also with mouse clicks. Hard to believe that a programme of this quality has this problem.

Anyone?

Forget it - sorted