Thanks for the reply. I thought it might be something like this... Makes sense if the + & - buttons are handled like that - i guess it means the release code is being dropped somewhere and not passes to RB. I tried to get this to work (or break!) in front row without RB running, but only seems to happen in the RB menus.

Anyway, no big problem - i'll have to slow down with my button pressing, and easy to stop if it happens.

Andy