On the majority of my Surface Pro's screen the pen works great. However, within 1 - 1.5 cm of the bottom of the screen (i.e. the side of the screen nearest the Windows logo), the stylus becomes inaccurate and loses resolution. That is, text I write is jagged and appears in the wrong place by a few millimeters. I've tried recalibrating and resetting calibration settings to no avail. If anyone has experienced this issue before or knows more about it (in particular how to fix it), can you please reply. Thank you.