Did you have them detatched an on a second screen and then swapped the L-R positions of the screens?
If so, try swapping your screens back in Windows dosplay control panel and see if you can find them again, otherwise, sorry, i have no idea, just thought i'd share the solution to a problem i've seen many times that has similar symptoms
If so, try swapping your screens back in Windows dosplay control panel and see if you can find them again, otherwise, sorry, i have no idea, just thought i'd share the solution to a problem i've seen many times that has similar symptoms