I BryanHope you can help me I have been flying the ATR aircraft for so long and decided this morning to have a flight in the PMDG 737 with FSCrew. On Loading some of the panels on the overhead don't work. Mainly the ones for ground power, to switch on the main battery etc. Other work I seat belt signs fuel pumps etc. It has something to do with the Panel.CFG file as if I install theo original panels without FSCrew they work fine. I have not changed these since my last flight in the 737. I have both the 600/700 and 800/900 versions with all the latest patches for the aircraft and for FScrew. Can you help?RegardsJason

Hello Jason,Please have a look at the FAQs and Troubleshooting thread. I believe this specific issue is mentioned there.It sounds like you may have accidentally forget to install a service update for the PMDG 737.EDIT: Thought I'd dave you the work:5. Question: The Battery Switch doesn't work and I'm running the PMDG 800/900 version.Answer: You forgot to install PMDG Service Update #1. It's available on the PMDG website. Please install that, then re-install FS2Crew.Cheers,Bryan