Hi, I just got my N810 and i noticed that the touchscreen is a little messed up and no matter how many times i calibrate the screen The middle lower bottom part of the screen is off and when i draw a straight line from the left to right side it's curved instead of straight. This can get really annoying trying to play OpenTTD when your cursor is off in places. Is there some kind of fix for this? like a touchscreen calibration with more than 4 points? Thanks.