Windows 7 and dual screen

[dippy]

With Windows XP, moving a 3d window to the other monitor on the same video card would cause it to be software rendered, rather than hardware rendered, unless you used NVIDIA dualview or something like that, or the ATI equivalent. Windows Vista allows movement to the other monitor on the same video card, but not on a different video card. Windows 7 behavior is the same as Vista in this respect. In my personal experience (which is the same as others' I've heard so far), I also get better performance multiboxing WoW with Windows 7 than either XP or Vista.

Windows 7 works great moving Warcraft between screens on different video cards. I have two cards (Nvidia 9800GT 512M and a much older Radeon X700). I use Octopus and it starts my 4 slaves on the main Nvidia card, and then moves the window onto the Radeon card.

The 4 slaves run perfectly well with the Radeon just showing the graphics (the 9800 does the gruntwork for all 5) and there is no slowdown at all.

David.