Very Computer

Please forgive me for asking this question which I am sure I have seen the
answer to before but cannot remember. It must have been that last power
outage ;-)

Sometimes when on X, like KDE, GNOME or IceWM the mouse cursor suddenly
seems to move upwards about a third of the height of the screen. This
happens whatever version of XFree86 we run. Why is this and is there any way
of "mending" it?

Thanks in advance,

Ian Pegel