Windows system sound when press a key!!!!

[TopWeb]

I have a problem, I am creating a game with PMO extension and assigning the "aswd" keys for movement and "space" for jump, every time I press the keys I hear the sound (ding) of windows system.
With the "arrow" keys and the "shif"t key it does not. In other projects it doesn't happen. What can it be? Thank you.

[Yves]

This could be due to an object in your frame (Edit object, Tree control, List Box, Combo Box, etc). Either remove the object or make sure it doesn't have the focus. If the object is outside the frame, maybe simply hide it (via a property or an action).