Bjartie

I followed Mr Zippy's advice and flew the 717 in question this morning and everything was perfect. I had to tweak a few things on the A/C, it think it came a bit buggy from the developer. That said, it is freeware so I shouldn't complain. I appreciate the time and effort people put into their freeware products.

OK, I'll give it a try. Thanks for your help!

I don't have any default panels in any aircraft and most of my aircraft are not default. I agree that there could be a panel conflict but this started only a few days ago, everything was fine up to then. I'm thinking maybe some sort of windows update screwed things up? As I said, more often than not everything works fine. Its just when it doesn't it gets frustrating. If I knew what caused it I could then at least try to fix it. I'm also wondering if VOXATC could be the culprit. The 717 is new for me; I downloaded it just yesterday and a Project Airbus plane was also new and it happened. If I could isolate the problem to specific aircraft I could always just delete the aircraft. I have tons of planes, probably far too many.

The MFD, PFD, FMC and radios all go blank when it happens.

I just started up the aircraft I used in the picture, a Boeing 717 with an Airbus panel that I put in, and everything worked normally. What irks me is that sometimes it happens and sometimes (most of the time) it does not. Of course I shut down the APU generator after engine start. I don't think it is a starting procedural, rather a bug in the software somewhere. I've been simming for more than 20 years and know how to start an aircraft. This bug has only been happening recently. I have lots of add ons, from aircraft to panels to scenery, a lot of moving parts. I think there is a conflict somewhere but I don't know where.

 The panel I'm using is an Airbus. I start with the electricals, and the APU generator. The X bleed is on APU. That said, this has also happened when I fly a 737 using  Gareth Monro's newest panel. The engines start in all cases as normal, the avionics cut out usually happens during push-back, or on the taxiway. 

The generators are started before engine start. It's as if someone turned off the avionics switch. It doesn't happen all of the time but enough to irk me.

After a normaI start up the 2d panel suddenly gets blank with nothing I know of to get it back. This has happened with different aircraft. I use P3dv4 and VOXATC