It sounds to me like the script editor window opens outside your screen and since it's a modal window QV appears to hang since you can't really click anywhere else.
Try hitting Alt + Space, then M, and see if you can move it into the screen using the arrow keys. Could of course be something else as well but this has helped me a few times when windows was acting up
thanks for your response.
it was interesting cause I reinstalled QV 11 twice and it didn't work. I uninstalled the plugin, QV Server and desktop, reinstalled desktop and it worked. It seems something in plugin and server was causing this issue.
It helped a lot!
I did not need to reinstall anything. Using this tip already saved time.
I used ALT + SPACE + M and DOWN ARROW until the script area reappears.
Thank you so much!
I realize this literally two years after your post but trolling around for answer to this issue I found your use of "ALT+SPACE+M" and then arrow key worked perfectly!
It was one of those days where every little thing was going wrong and a frozen edit script was icing on my cake!!
Thanks for the post...it was the solution