dual monitors, display reversed resolution information and mouse probs

Win 7 x64, NVIDIA GeForce GTX 550 Ti I seem to have gotten myself into a 'pickle'. To start with, several years ago I had set up the desktop with two monitors and had it so that the desktop stretched across both monitors. That way the mouse could traverse both, back and forth. I was looking at the settings this morning and realized that the 32" LG monitor on the right now indicated a resolution of 1920x1080 which was all wrong. That was the resolution of the left 32" Samsung. But in fact the resolutions were both at the maximum for their ability. The left samsung was, in fact, displaying at 1920x1080 and the right LG was at 1360x768, it's maximum. (why the disparity between the the two? I was given the LG; what can I say?) So here is the problem: Now, not only are the monitors correct in possible resolution but are indicating incorrectly; and, I can no longer run the mouse from the left to right. It is stuck on the left. The display adapter is a NVIDIA GeForce GTX 550 Ti. I have two possible ways of manipulating this. One with the Nvidia control in the tray and the other in Control Panel > Display > Screen Resolution. First I tried selecting "Extend desktop to this display" but the mouse is still stuck on the left. So how do I correct the wrong info on each display and how to get it to allow the mouse access to the other display? Maybe the way is to somehow go back to basics then redo but I am not sure how. https://www.sevenforums.com/images/smilies/huh.gif Any thoughts would be very welcome! fb2