Reported by aliminator on 2012-12-17 08:29
This happens when in the keyboard settings dialogue following settings are set:
Use CapsLock as an NVDA modifier key: unchecked
Use numpad Insert as an NVDA modifier key: unchecked
Use extended Insert as an NVDA modifier key: unchecked

Then, the NVDA key will not be available anymore.
What about providing an error message box if such configuration is goin to be applied.
Another maybe more effective alternative is to provide a multi-select list box for those settings mentioned.