Skype Video Restarts During Call - Audio Is Uninterrupted

Trying to help my brother out here. The title says it all but here are the details.

During a Skpe Video call, with myself and others, his video will freeze, then the Skype video will close and restart. This will occur periodically (and frequently). When it happens HIS SKYPE AUDIO IS UNINTERRUPTED.

Now this was happening when he was running Vista. Rather than beat my brains out I upgraded him to Windows 7, which I was going to do anyway. Alas, the problem remains!

His setup (incomplete but I can get the rest...)

Windows 7 x64
HP Pavilion m9250f Quad
4GB RAM
Logitech Video Camera (C210?)
Hauppauge Tuner
Onboard Realtek Audio

Not sure what to look for on this one to narrow the field of possibilities down. I suspect a conflict in resources (interrupts, etc) but it could be something else.

It is almost as if something is waking on schedule... "It's ALIVE!"

He has tried an uninstall of the Logitech webcam and Skype and a "clean" re-install per Logitech's guidelines. No luck.

Searched the internet. Lots of problems with Skype, et al, causing BSODs and/or system shutdowns, etc but could not find one where it was JUST the Skype video restarting while the audio remained connected and uninterrupted. But I might have missed something.

Any suggestions would be appreciated.

Thanks!

Thanks! I will be contacting him soon and we can try out a few things suggested by the link you priovided.