Whenever I have to deal with Oracle 10g projects at work, toad always comes in handy. However yesterday, the backspace, delete and arrows button inside the SQL query editor, all of sudden, stopped working ! I can only press the other key.

I think it’s toad bug. I tried restarting the toad, even restarting the computer, but the problem persisted.

I didn’t want to uninstall/ re-install the application, so I search the problem in the google search engine.

Seems like the other people had the exact same problem, and the solution was quite simple !

To resolve the problem you have to go to toad directory installed:

C:\Program Files\Quest Software\Toad for Oracle\User Files

By default, toad installed in there. Then delete file PLSQLKEYS.BIN, you must close the toad before do it.