For the folks that do use Logijunk. On the Logitech website there is a "Clear Calibration" utility. You have to search for it, I know it's still there.
It will clear all old calibration garbage that is left over, each time you recalibrate. (I used to own one). It might be under the mouse software support, or somewhere else. But, Like I said I know it's still there.
Oz
