PMDG 744F Multiple Monitor Question

Hi all,First i would like to say how GOOD the "F" is!Basically my problem is, i use two monitors, if i have FS running with the 744F in the VC on one and say Interent explorer on the other, depending on which program is selected, my FPS vary.Ill try and explain myself, at the moment with the F in VC mode (2D not full screen) i am getting 10 - 17 FPS, but if i select the Interent explorer bar (the blue bar at the top of any program, window) on the other monitor my FPS increase to between 17 - 25...Does anybody know why this should happen? And it makes me wonder if there isnt some setting somewhere that i can change to get 17 - 25FPS always with FS selected...Cheers,Nathanial