While some games are a pain to use with my two monitors, this is not one of them. The game shows up on my main monitor, in the correct resolution. The scrolling is finicky, in that to scroll to the left (towards my secondary monitor) there is a sweet spot that makes it auto scroll. However, I usually just click and drag the map around when I need it, so I wouldnt call it a 'bug'.
It shouldnt be too hard to set up the test for scrolling to be a larger 'window' or range...and preferably not a greater then width test, so it doesnt always scroll when you are in the secondary window.