As has been stated, the problem is that the FSX developers did not expect to have to display panels across such large areas. To reduce the area of the main panel change the windowsize_ratio in the panel.cfg for your aircraft. windowsize_ratio = .33 (i,e, 33%) will give you a main panel on your middle monitor. It will also be reduced in height to 33% of full scale - which you may not like. Play with higher numbers to arrive at your preferred compromise.Max.