Got an XPS 420. It came with Intergrated Audio.(I Know). Current Drivers for Sigmatel High def audio. I Upgraded to Windows 7 from Vista Pro.

I use Windows Messenger for Video Calls, and before upgrading  I know I had Full Duplex functions . but Now It seems I do not. When Using messenger It only has Single Duplex.

I do not know why?

Anything silly I'm missing or should I consider a Full Sound card, as I do use the Messenger Video Talk a lot.

thanks