Ok, any thoughts on this?
I just deleted and reinstalled the FTM 2014 program for about the tenth time. This time, I refused to download a required "patch" which apparently will affect the ability to sync my tree. The program will open now. Maybe my instinct about syncing trees - and connecting to the Ancestry server - was the issue? Like I said, no issues with FTM 2012 and syncing there.
You are all wise people - might this be the issue?