This might p[rove useful to someone, it worked for me just now.
I had Toad open and I had the F4 (Describe) window open on screen. It covered quite a large proportion of the screen, but not all. I then put the cursor, in the editor, on another object name, and pressed F4. Toad Hung.
The problem was eventually found to be that I had not typed anything in Toad for too long, so the network/server/admin configured timeout kicked in and my connection was gone. The F4 request had failed with a "not connected " error dialogue which had popped up below the F4 dialogue. Until I acknowledged the error, I couldn’t do anything as all new windows open beneath the F4 dialogue. (That’s anything - Toad or otherwise!)
Long story short(ish), the steps to resolve this problem are:
- Click Toad on the task bar
- ALT-SPACE (activates the system menu on the hidden dialogue)
- M (for move)
- Use arrow keys to move the now displayed MOVE cursor to a space on screen that is not under the F4 dialogue.
- Acknowledge the hnow not hidden dialogue.
- Everything works again.