I just tried
I have recently tried a setup with two monitors (but now I don't get it working again - Mmuahahahahaaa!!!)
I also connected my second (older) monitor with my graphic card - one is connected via HDMI port, the
older one with the old connection.
In the graphic card's menue (Catalyst Control Center) I saw the overall width was now both horizontal
resolutions summed up together (3570 px).
Then I opened Lou's map in Windows viewer and moved the viewer to the right desktop, where I adjusted
the overall size of the viewer's frame.
Then I started WOFF, and it was only on the left, larger monitor. Worked nicely - all over one card.
Just tried this and it works perfectly.Had an old 21in laying around so I plugged it in and voila,I can open the map and drag it over to this screen!!
Thanks Olham for the suggestion.