I was wondering if anyone else has had this issue. We are using ceiling mounted projectors with our wall mounted Smartboards on the ground level of our building and it appears the vibration from the ceiling as well as the vibration of the high traffic outside makes the Smartboard unresponsive. So we are continously re-cabibrating. It is truly frustrating when the teachers are in the middle of a lesson asnd a truck goes by. Does anyone have a solutions.