Recently I had to reformat my HDD and redownload Display Fusion, but I've come across a bit of a problem. When I minimize a window, regardless if it's a web browser; game; IM; etc. they minimize to the original taskbar instead of the taskbar on the monitor they are currently on. (i.e. if I minimize a window on my second monitor but my original taskbar is on my first it will minimize to the first while the taskbar icon shows the window on the second.)
The second problem I started to notice before I reformatted my HDD. When I move a maximized window from a monitor with a higher/lower resolution than the monitor I'm moving to sometimes it doesn't readjust the window to the new resolution until you minimize and maximize again.