There is no 'Dual-Monitor' problem, as such. - Only with Jim's desire to include a bezel width adjustment, to provide a more realistic fish movement from one screen to the other. - MA has been on multi displays for years, I can't see MA3 being any different.
As I see it, this "blink/jump" is only associated with Vista! - Which from what I have read, does not come as a surprise.
Sorry I wasn't precise enough with my "dual monitor problem" reference. Of course the bezel width adjustment that Jim is fighting with is only associated with dual (or multi) monitors.
Bob