I have a Promethean board in my classroom. At the beginning of the year the technology coordinator was able to calibrate my board by placing the pen up the flame. A few weeks ago a student was swinging her lunchbox and hit the board. As a result, the screen became very blurry. I unplugged the cords from my laptop, plugged them back in, and the screen went back to normal. However, the pen was no longer aligned to the cursor. I have tried calibrating it again by holding the pen to the flame and by clicking on the Activboard icon on my computer, but neither one works. The technology coordinator is currently out of town, so I was wondering if anyone knows what I am doing wrong. Also, back when I was able to use the pen, I had to push extremely hard on the board in order for it to work (often times causing it to make loud screeching sounds and gaps in the writing). My students always became frustrated when they used the pen because it was so much trouble. For those that have a Promethean board, is this normal? Thanks in advance.