Image Jitter / IS-900 / Rockwell-Collins SR-80 HMD

[jde]

We're experiencing significant jitter in the image while using Vizard with an Intersense IS-900, and a Rockwell-Collins SR-80 HMD. We split our signal to some monitors and the HMD, and there is absolutely no jitter on the monitors. However, when moving one's head in the HMD, there is significant jitter in the image, even when poly counts are fairly low (say 10-200). Any ideas? We've tried using a sync cable, messing with multisampling, triple buffering on the video card, changing from polled to continuous mode as suggested on another post, all with no luck.

Suggestions?

Intersense IS-900 (http://www.intersense.com/pages/20/14)
SR-80: http://www.est-kl.com/fileadmin/medi...R80-A_7.07.pdf