Hi Dave - if you make the MoI main window so that it is not maximized, you should be able to grab the edge and resize the window so that it is going partway across your 2 monitors, I think that is what Steve was talking about.
Great - I'm using a lot for the NaP 50's contest. I'm really liking the new size readout and edit box - use it all the time to resize things to exact dimensions.