There may be another problem. There were actually two mouse pointers on the screen, the windows mouse pointer which I had intermittent control over, and the Skyrim pointer which was motionless.
i get this after alt-tabbing sometimes. if you alt tab again (sometimes it even takes two more times) it seems to go away.
also my mouse has always never moved onto the left screen. when in menu or inventory, i assumed since the inventory is centered to the middle, why would i ever need i to? doesnt seem to matter as nothing is over there to click on. i can move it over there in the map though n/p.
and my mouse does move to the right screen, and i can see it. all the time. in inventory, menus etc. it moves right and is still visible. it does occasionally dissapear when its over on the right monitor though. again, doesnt matter as long as it works on the middle one. i did get it lost over on the right once or twice though, but just moving it left either makes it visible again or just brings it to the middle screen