I decided to buy some credits from Navigraph so I can get current info on my PMDG 737. The download worked perfectly, I guess. I mean I looked in the folders and all of the new AIRAC files were there.The real problem was that when I clicked on Fly Now in FS, 20 seconds after I clicked that, it's still at 0% and flight simulator crashes.Again I would really appreciate some help here!Thanks so much,Ryan / SWAPilot785

Hi Ryan, I never heard of the Airac files from Navigraph causing any crashes in FS. At least I never read a post that said so, and never personally had it happen. However, I don't run FS9 or the 737, but do have 3 PMDG aircraft (4 if you count my FS9 MD-11) and never had a problem with the Navdata. Before I speculate to anything, I do remember the 1st time I install Navdata and chose to delete files before install the download. Not sure why, I guess I just thought too much into it and thought I was making sure it would work :( Did you make any other changes other than Only installing the navdata?You can also check your windows event logs and cross your fingers that something may be in them saying what caused the problem. Check under Application.*To check your event logs: Right click the "My computer" icon and choose manage. Then in the left pane expand "Event Viewer" and then also expand "Windows Logs". Highlight the word "Application" under windows logs and look for the error (best done right after an app hang or crash). If you remember the time you can scroll down to when it happened last to you.Also, verify you downloaded the correct ones, I'm sure you have the correct ones since I doubt it would install otherwise, but I don't know.Lastly, please sign your full name to your posts in this forum, per forum rules, Thanks.Hope this helps,