Studio Log 20100403: Installed the latest version of the M-Audio driver for the FireWire 410. Cubase Studio has been hanging a few times during the day and it seems that the 410 was the culprit. Also, testing both Bluebird mics to locate that 13kHz anomaly. One of the Bluebirds has a much (much) higher noise floor that the other is not really useful in this test. Reporting the mic problem to BLUE. The one quiet Bluebird is just that...really quiet...perfect for measuring the studio background noise...which measures 14dB on a still night.