[xjsb125]

I had a similar problem with my ADVC 110 a while back, and I think it was a poor connection on my firewire port. I switched to my second port and the problem went away. I never had sound and no picture, though. I have a Canon camcorder, and Vegas 6, but I've never tried it as a pass through. Check your connections from the camcorder to your computer first, and if you have an alternate port to plug into, try that.