Symptoms:
- The red clipping light is permanently lit on channel 7
- No signal coming from the microphone channels 7 or 9. (I determined this by plugging in a mic into each channel and testing and watching the meters in TotalMix)

I've tried:
- Powering off the Fireface, unplugging it, then plugging in and powering up again.
- Powering down my Mac and powering up again.

I'm dearly hoping there's a software reason for this, but also fearing the worst...