I get a little pop up at the bottom right hand side of the screen whenever the num lock status changes.
NUM LOCK: ON
NUM LOCK; OFF

I think this is the 311 not Windows doing this and would like to stop it happening - any ideas.

The reason is that I have a USB keypad I am using for gameplay (keys mapped etc..) but it seems to toggle the num lock on some of the keys, which causes the popup, which shunts the game screen up and does not put it back.