That is quite an awkward set of hardware you're using for a review? Will the IZ3D display even run with only 1 of the 2 LCDs plugged in?
IZ3D = 1680x1050
Acer = 1680x1050
Samsung = 1440x900
Not sure just what triple head resolution you'd shoot for. It needs to be a common resolution all 3 of those displays can lock to.
Triplehead with 16:9, 15:9 and 16:10 resolutions
4080x768 @ 60 Hz (triple 1360x768)
3840x800 @ 60 Hz (triple 1280x800)
3840x768 @ 60 Hz (triple 1280x768)
3840x720 @ 60 Hz (triple 1280x720)
http://www.widescreengamingforum.com/forum/viewtopic.php?t=12178