Hi John - certainly appreciate the follow up - we will get there I am sure... and unfortunately for me its one of those things that I need to know is fixed...Tenacity has helped me in life - so lets do this...
Running the FSUIPC7.exe as an admin - shows splash screen at start up...sim loads then runs - clicking Alt+F does nothing - even minimizing window to see if its running in the background and even alt+ctrl+del to see if its running as a program does not show it. I reduced to windowed mode for the sake of argument to see if the F7 icon is showing in task bar to bottom right of desktop and as soon as I hover over it...it disappears.
Changed FSUIPC7.key to FSUIPC7.key.Test and ran FSUIPC.exe - splash screen sim starts - and FSUPC7 Menu showed up on the whole screen i.e. not windowed as it used to...however there were no assignment capabilities. Close MSFS, renamed key file and restarted - running as administrator FSUIPC7.exe = splash screen shows but no menu/control assignments.
Decided to uninstall again - reboot, and then re-install with same results above.
Stumped.