M-Audio Keystudio recording audio to Audacity

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Hi,

I'm trying to get my M-Audio Keystudio (which has an audio input as well as the keyboard) to record audio to Audacity.

I'm in Ubuntu 10.10. When I look at the Sound Preferences I can select "M-Audio RunTime DFU Analog Stereo" as my input device. However, when I try to record in Audacity, Audacity remains frozen. The program seems to be running and recording, but the recording cursor won't advance.

When I reset the audio input to the internal sound card, recording works normally.

Any ideas what to look for?