Mouse location corruption.

I'm running rdesktop on a linux box to view a windows box. I'm finding that after using the rdesktop window, the linux system gets confused about the location of the mouse. When I click with the mouse, the system behaves as if the click is displaced about 10 pixels up and to the left. After moving another window around, the system syncs up & the mouse location display agrees again with the click locations.

Is it possible that rdesktop is eating some of the mouse events so that the X server starts thinking that the mouse is a little off from where the video hardware locates it (I think I'm using the video card hardware
mouse)?