stuttering on Mac x64 Snow Leopard

[molespf]

I just purchased an Infocus IN1503 and was very excited to try out the DisplayLink technology. I have found though that I am not able to do full motion video at full screen w/o the picture stuttering. The native resolution of the projector is 1280x800 which should be well within the range of DisplayLink and USB but I have to drop the resolution to 800x600 to get smooth picture.

To make sure it wasn't an issue w/ my video card or laptop, I played the same video (Hulu.com) on the projector using a VGA cable and am able to do 1280x800 (and up!) perfectly.

I have attached a debug to the post. Hopefully this helps in tracking down the issue.