Dave, yep got the key and all is good with PF3!
My first run was with an SMS 737-700 and Groundhandling installed. PF3 installed, updated and connected to FS with no problem. Most importantly, Groundhandling now works!
My next test will be with FSC and Active Sky Running. I doubt that will be an issue as it wasn't before. Then I will start reinstalling all of my scenery (

) one at a time but doubt that will effect anything as well.
I still don't know what the problem was originally though, which is okay I just hope it doesn't happen again for some reason.
Thanks guys and hopefully whatever the problem was, it is GONE.
wombat457