Whenever I try to compile a flightplan in proflight 2000 I get an error message
Run-time error '5':
Invalid procedure call or argument
I am able to select my flight plan, choose an hour, set my altitude, callsign etc. Next I click compile, then continue and then ok. That's when this error pops up.
I thought there was a problem with my flight plan, so for testing purposes I selected one of the flight plans that used to compile fine. I get the same error message for these flight plans.
Any help is appreciated