HelloI have one problem:after i have loaded my pmdg airplane, and after the airac datas was loading, the fs9 will crache down and the program ask me, if i would send a report to the microsoft.i have installed the newst patch and i have also loaded the new airac cycle 0409.shortly time bevor i don't had any problems with this great airplane, realy nothing, also the tcas was running well. but today,??? i don't have any more idees

You might try uninstalling and reinstalling PMDG, It is not the difficult using the Uninstall utility found on the PMDG wedsite.

Strangely this happened to me too, one day everthing was fine, the next day an immediate CTD when trying to load any PMDG 737. Reinstalling all my PMDG 737s solved it.John

at me this happens sometimes, when I activate TCAS at the PMDG.

Hi,did you install FSUipc 3.40 ? It's required in order to use addons like PMDG 737NG. FSUIPC versions lower than 3.40 won't work with the upgrade to Fs9.1.Did you upgrade ActiveCamera to 2.01? It's required if you have ActiveCamera installed.Do you use the NOCD fs9.exe? If yes than you should not do it!If you install the upgrade over a NOCD fs9.exe you probably have messed up your complete Fs9.If you upgrade to Fs9.1 and then you overwrite the "NEW" FS9.exe with the NOCD fs9.exe you can be sure that this will NOT work! Just think about it...Hope this helps.Constantin

I've been having this problem since I installed the patch, and yes, I have the FSUIPC 3.4 installed. The only way I can get the PMDG aircraft to work is to load another aircraft first, and then switch to the PMDG once all the scenery and traffic are loaded. It's a bit of a nuisance, but at least I can get it working.Still, there seems to be a few of us having this problem, so maybe it's worth investigating furthur?- Martin

Martin et al,This is something that has followed more advanced add-ons as far as I can remember. The DF B734 and PSS A 319/20/21 series comes to mind.I think it has something to do with the FS setup not being correct. But to my knowledge noone has ever been able to accurately pinpoint the reason.Sorry I can't be more of help,