I reinstalled CFS3 first time in years today.
It all works fine, except the icon for the mouse jumps around about an inch up/down/left/right constantly.
This makes it hard to change the settings because it takes 10 seconds to tick or untick any box in the Settings options.
The mouse is not jittery in any other flightsimulator or program except CFS3.
Thanks for any suggetions you might have