It sounds like you need a card that support quad buffered stereo, like a nVidia Quadro card. Then after enabling stereo in the nVidia control panel run the following code in Vizard:
Code:
import viz
viz.go(viz.QUAD_BUFFER | viz.HMD)
gallery = viz.add('gallery.ive')
This won't effect turning on stereo but you'll also want to set the field of view in Vizard to match the glasstron. For that use the
viz.fov command.