I had the same problem. The Cessna Longitude was working fine after the latest update, and I was learning about the displays and other nice features. But the next day when I loaded this plane the screens were as described here. Ended up moving everything I could to another drive. Not all files in the Community folder could be moved. However after this was done the Longitude worked. Now I am going to start adding files back from the other drive and see if the Longitude still works. Hope this can be resolved. This is the first time I have had this problem. This did not occur with the CJ4, which I tried before removing the files from the Community folder.