When attempting to edit data (Delete, Copy, Paste, etc.) in the Sql or the Procedure Edit Window, Toad will not respond. None of the keyboard keys work.
PLSQLKEYS.bin file is corrupted.
1. Close TOAD.
2. Locate the PLSQLKEYS.bin file, by default this file is located at C:\Program Files\Quest Software\TOAD\Temps.
3. Rename this file to PLSQLKEYS_old.bin.
4. Restart TOAD.
Launching TOAD will automatically recreate the PLSQLKEYS.bin file, resolving the issue.