I recently installed vegas audio 2.0 on XP. it works perfectly except for play and record simulataneoulsy.

I'm my audio interfaces are an edirol ua-3 usb interface recording input, and soundblaster live output.

It records everything fine, and plays back AFTER recording, but when we try to record vocals, no dice.

is it my sound card? am I missing a driver? is it because the audio input is coming through a usb port (via the UA-3)?

thanks.
please help. I spent 3 hours trying to fix this problem last night, and I am completely frustrated.