stereo projection issue

[asimbh]

I have used a number of modes such as

viz.go(viz.STEREO | viz.FULLSCREEN | viz.HMD)

and

viz.go(viz.QUAD_BUFFER)

with some customized settings as well according to my device

viz.stereooverlap(.95)
viz.fov(24, 1.33)
viz.ipd(0.06)

and the display mode I'm using is "horizontal span"