Problems with calibrating, frequently needing to recalibrate
Hi, I have a maths teacher who uses his Promethean Activboard all the time, but finds he often needs to recalibrate during the day, particularly after a reboot. Although the accuracy will drift off during normal use as well.
Also, even after calibration the mouse pointer matches up with the pen-tip when he uses the left-side of the board, but is about a centimetre off at the right-hand-side of the board. I have never debugged one of these boards before so any advice or ideas would be welcome. He's using Win XP.