1 Mouse - 2 Cursors? Possible?

[shockbeta]

The only clarification would be that the screens would be above each other (not side to side - I rotate my monitors 90 degrees)

You rotate your screens 90°? So you have them Portrait not landscape right? I would think either way you set your monitors up Windows would enforce the same (X -> across) and (Y-> down) either way. So the above method should work.

and there would need to be a separation zone (implicit in how you proposed to do it, I think) that would not allow mouse cursors to cross to the other screen.

In the above example I was figuring your mouse cursor could move where it wnated on the screen. The if else check just decides if your mouse is over the upper or lower instance and sets "the other" accordingly.

You're only using 1 screen per box right? Not dual screen layout with an instance on each screen...