Prepar3D Forums

I'm experiencing a lengthy app freeze when I try to cycle coords, vram and fps. It eventually unfreezes and then works normally until I cycle it off for a oeriod of time then it hangs again. So far it has only caused a CTD a couple of times. Also opening the ATC window will cause a slight hang when first opened or after a lengthy time of being closed during the same flight. The hang appears associated with opening and closing extra windows.