Hi Graham
I have had this happen occasionally - AirNav are aware of the problem.
I don't know if they regard it as a Logmein problem or an RB problem, though - but I agree, it only seems to happen with RB and not with other programs.
As I recall, (haven't used it since before Christmas) keyboard shortcuts are OK, so I just avoid using the menus - for example you can get to Database Explorer through right-clicking a flight on the grid, which works OK.
Rod