totally stumped... on an omnibook 6000 running win 2000 prof. the mouse becomes invisible after i go to top of the screen only when connected to docking station. it is still functional, but cant be seen on the screen. i have tried ps2 and serial mice. they all work fine when it is not connected to docking station. i have reinstalled it and basically done everything i could think of. this only happens when it it connected to the docking station. any suggestions?