A very simple guide how to use the Windows calibration tool to obtain superior stylus accruacy compared to the stock data. This will, however, only work for software using the Windows calibration data (e.g. Sketchbook Pro and OneNote). How you do it. Uninstall the current Wacom drivers and reboot. Start => Control Panel => Hardware and Sound => Tablet PC Settings => Reset Start => type cmd and run as administrator. Paste following. Code: tabcal lincal novalidate XGridPts=5,15,30,50,70,90,120,259,513,767,1021,1180,1210,1240,1275 YGridPts=5,15,50,100,163,223,321,479,640,740,780,795 This gives you 180 calibration points instead of only four. The result is an amazing accuracy over almost the whole screen! But if you want to change the tip preassure so must you install some kind of Wacom drivers again, and this might override the Windows calibration data. I believe the Lenovo driver has the worst accuracy, so I tried an old Fujitsu driver. This one was for me far better in secondary landscape mode than the Lenovo driver.