Entering certain key combinations cause dosbox under X
to stop taking keyboard input. For instance, sometimes
I accidentally type ctrl-alt-left/right to switch my
desktop while the mouse is locked in dosbox; after
that, I'm not able to input anything else with the
keyboard in dosbox. The keyboard still works in the
rest of the system.
I can reproduce this always with dosbox 0.63 and CVS
(updated around 2005-07-23 13:00).