I have two logitech usb laser mice on my pc. This is so I can use one right handed or left handed without dragging the wire all over the place. My specs; left hand mouse logitech M-UV55A right hand mouse logitech M-UR55A (looks just like the other one) Windows XP pro usb through Dell monitor ports My problem is that the cursor moves different amounts with the same movement on either mouse. Plus the right hand mouse has trouble highlighting text and resizing windows. I do not have any idea if they are the same resolution as I have not been able to find that on the logitech site. Is there a test that can measure mouse resolution? Does anyone know how to set the mouse movement individually? I am trying to avoid the obvious answer, move the mouse from one side of the keyboard to the other when I want it there. Anyone have any ideas about this?