Yes, it is that. I play a lot of Microsoft Flight Simulator, so the triple display gives it a more of an accurate view of the 3d cockpit. But I have found out 2x Widescreen 20" is basically wider than 3x 19" Standard. So stretching it across would be ideal for Flight Sim, but other stuff, I am not too bothered about. What option would I use so it could stretch across when needed?
In Span mode, windows believes that your monitors are one big screen, as opposed to multiple screens. In Span mode, windows will run full screen program across all monitors.
However, in span mode, if you open a window, it will also take the full array of screens, so you would not be able to put them side by side, unless you restore down and resize the windows manually. In Multiview mode, the window will open on one screen, so you can maximize them to your monitors side-by-side.
With a dual-head card, you can accomplish both span mode and multiview mode. Triple 2 go is, I do believe, only span mode. If you get multiple graphics card to achieve three or more monitors, you can only span mode monitors that are connected to the same card.
I'd just like to add, that gaming in dual-screen is not as great as you might think. With only two screens, whatever happens in the middle of the game is split in two due to the fact that monitors are side-by-side and therefore there's a gap in between the screens. For only two screens, it would be better to simply get a nice big screen to play games with, and a smaller cheaper monitor for multi-tasking. With three monitors, spanning games is great, but not possible without a quadruple head graphics card, or products such as Matrox's Triple 2 go.
Flight Sim however, supports multi-display, so it works in multiview mode, no need to span. But, the extra screens are used to move control panels over and cannot render 3D content, see you only see the Virtual cockpit on the primary display. This info is based on my experience, (my big monitor is connected to my powerfull card, and two smaller are connected to a weaker card, this configuration may have cause Flight Sim to only use my small monitors for panels, with black backround), it might be able to use dual-heads to span (not talking span mode, span is also a word use meaning stretching across screens) the game on one card, and use any secondary graphics for panels. Triple to go will work, but your graphics card might have a hard time with the high resolution.
