Hello there: I resendly reinstall my fsx after a computer crash.After installing my pdmg 747-8 the Battery switch didn,t work any more. The only thing i could see was the little with hand, but when i wanne klick it it didn,t do anything. and without battery you can not fire here up.Is there anyone that can help me with that? Allso there was no add-on tab visible at the top of the screen. greetz Dirk Nijdam