Hi,tried for testing to disconnect the drive generators. Now I am unable to reconnect the drive generators. I tried it as stated in the manual - went to the PMDG option menue - various - and reset button for EDG. No changes, drive generators are still disconnected.Even if you load another aircraft or flight, DG still disconnect.Thanks for your adviceAlfred

During the reconnect process, is the airplane on the ground with the engines stopped? Note that after reconnecting them, the DRIVE light will only disappear once the engines have been spooled up again.Hope this helps.Cheers.Q>

Q,Thanks, didn't spooled up the engines again.Alfred