never understood the punchline
Sorry. It's the date, mate! (Check your original message)
And I think the only true cure is to re-install Archicad 11 from the original CD and then re-apply the update. If anything has gone wrong during the update, whatever you do otherwise might end in some mixed-up half-breed state.
AC4.1-AC24SWE-25INT; OSX11.5; MP5,1+MBP16,1