I had tried the FEZ Audio Out sample project at http://wiki.tinyclr.com/index.php?title=FEZ_Audio_OUT with the last version of the firmware. Worked great. Now it doesn’t. Nothing has changed other than upgrading to the new firmware. I’ve stepped through the code and it is not throwing any errors. I’m just not getting any sound out of AN0. There is a faint beep or two, but that’s it. The beginner’s guide has nothing for sample code, and just says …to be continued… under the Audio section.