Problems with the GTN 750 and the BAE 146 1.2 version.
I am finding the version BAE146 1.2 to be buggy when switching to the GTN 750. I am getting the blank screen with "booting" at the bottom. When I go to switch back to the UMFC the sim freezes. After several reboots and selecting the GTN750 both in your drop down menu and the GTN menu I can finally get it to work. However it is not consistant and does not always load reverting back to the blank booting screen on the GTN.
Are you aware of this issue and working on it. Thanks!
If you let Just Flight support know about the problem you are experiencing they can look into it and see if they can ascertain what causes it.