i'm not sure where to put this, but here goes. when using dual display, can i somehow set it so that when i set VLC or DVD player or iTunes Visualizer to full screen, the other one doesn't go all black. i'd like to have say the itunes vis on one screen, while working on the other one. or maybe a fullscree movie while having other things going on in the other screen. any ideas/solutions?? thx.