Well i just got home and hooked up my new 27.5inch moniter and then i set my old 22 inch right to the right of it. Set up dual screen mode. But one thing im wondering about , is when i move the mouse off the edge in the middle of my main screen it moves into the middle of the 22 inch as opposed to where it is on the 27 inch. What i mean is i want it to go in a straight line when i move to the other screen not reposition the cursor to the middle of the other screen . anyone understand what im saying?
On your desktop: right click > properties > settings. On the picture of your two displays you can drag each display around relative to the other display. try to arrange the picture to be like how you actual monitors are arranged. Then your mouse will go between the monitors in a straight line.
are you using nvidia control panel or ati catalyst to setup multimon? If so try resetting it and using the windows. when you set monitor "2" inbetween monitor "1" Monitor 1 being the higher res monitor when you set it up through windows. this should let you move in a straight line.