Hi,Please excuse me if this question/problem is posted in the wrong place but not sure which Forum this should be posted to. I have looked through many forums to try to find the answer without success.I am trying to use the INTEGRATED SIMAVIONICS GROUP 1 (ISG1) instruments with FS2CREW default edition on the Default 737 in FS9.I installed ISG and created a separate entry so that I could use the default 737 with these instruments. This worked fine.I can also use the default 737 with FS2CREW as normal.However when I combined the two programs, if I try to use the 737 I get a CTD with the error message that

Hi,It makes sense.Something in your panel.cfg got messed-up when you tried to add the SimAvionics gauge(s), resulting in a required FS2Crew gauge not getting loaded.Double check your panel.cfg and make sure all the numbers line up and that there are no typos.Also, rather than using Panel Studio, I might suggest simply adding your new gauges by hand (you can use Panel Studio to get the x,y, coords).-Bryan

Thanks for the help and quick reply.Found the problem!! I had incorrectly numbered one of the windows panels in the CFG.