I believe it's been since I upgraded to Mavericks that I've had this problem. Sometimes upon launch, sometimes after docs are already open everything gets greyed out and I can't do anything not even quit. I end up having to force quit. I have the most updated version through Creative Cloud. Thoughts?
If you did an in-place upgrade, you should at the very least uninstall and reinstall your Adobe programs.
It appears the updated version 2014 installed as a new app altogether not as an update. Created a new icon in my doc automatically.
That's because it IS a completely new version.