Yes i also am having the same problem. I just picked up a 23in cheap monitor but when i first hooked it up it worked. but like my second monitor is set up to my left but the mouse would have to go off the screen to my right to go to the screen on my left. so i went into the settings to try and change how the mouse would go to that other screen. and now i have no idea what i must've done but the second screen shut off and the card wont recognise it any more. on top of that it seems like my puter knows it's there but somehow it's all messed up now.