That's strange, DVJ.. I'm having similar issues. Out of seven attempts only the first one was successful. The sim crashes, CTD even with a clean Comm folder. Chose another AC and no problem.

Not sure what the issue is.. The very first flight I chose Alaska Air with GTN 730. Loaded and flew fine with the exception that couldn't change the Nav 1 freq on the GTN head. It wouldn't even swap or change freq.. Finished flight wanted to try with another package and have been unsuccessful ever since. When the plane did load up that one time, I flew for about an hour and it worked fine other than I didn't see the spoilers activate upon landing when I enabled them. I'll keep trying to see if there are any other circumstances to clear the 707 for TO.