Similar to my post on the official Nvidia 3d Vision Surround forums. Will it help anyone, I have no idea. Definitely not a restriction of the OS anyway.
You have to unlock the taskbar and move it to a vertical position. A bit smaller than the regular you get from horizontal taskbar but still working with the correct aspect ratios of the windows. (Image is in Picasa, I am not sure if it would display correctly for you)
I am still setting up stuff so it doesn't bother me when it's far right on the right monitor. Maybe it would work better with PowerDesk? I havent install it yet.
Reason I am posting it here is, while searching for it I didn't see any solutions/ fixes/ workarounds. Might be that I haven't used the correct keywords. And the few posts I came across said it was because of the very large desktop resolutions. This workaround (?) proves otherwise. If you know a better way please reply here.
Thank you.