[Innovan]

In response to an email, I'm just guessing that "dual head" video cards will be the easiest to support for multi-monitor combinations since all the calcs for both monitor displays are done by one GPU. ("Graphic Central Processor" instead of a CPU)

The real problem is when you have two different 3D video cards, each calculating at different rates thousands of polygons each to display the same scene from two different windows. Best case you get a lagged scene between two monitors. I think Jim shouldn't waste his time in driverland, but if he's got a few betatesters with dual headed video cards that he can work well with it may be a low effort invested for a pretty cool pay-off.

(Innovan pictures HGTV installing TWO flatscreens over a fireplace, really showing off Serenescreen!)

What would be a real pain in the arse would be to have a "gap at the seams". You have two monitors side by side. You don't like that a fish "stretches" across the four inch gap between monitor frames, and would like the screensaver to have a four inch non-display zone between the two displays, so instead the fish glide off one screen, into the four inch dead zone, then onto the next screen. A six inch fish scales correctly with one inch head displayed left monitor, one inch end-tail displayed right monitor, and four inches non-displayed in the dead zone in the frames between the displays.

Ugh. *That* is not worth the programming effort. Let MS solve that one, please.