Hey Ed,
If you’re having the same problem I was, when you click Export > Media, everything seems to sort of lock up and clicking anywhere on the Premiere Pro application makes your computer beep.
I was on a PC when I was having this problem, and I did this:
1) Pressed Alt+Space
This made a little popup menu show up.
2) I hit the down arrow one time and selected “Move”
3) I held down the right arrow key for a while, and eventually the window started sliding onto my monitor from the left. (So I guess in my case my export media window was to the left in some kind of no-monitor-limbo. Maybe yours is the same, or maybe it’s in a different direction?)
It took maybe 10 or 15 seconds of holding the arrow before the window started sliding into view. It didn’t happen right away. In fact, I was almost about to give up and try another direction when it peeked onto my monitor.
Good luck, and I hope this helps!
-Jen