Hmm. Not sure about that. Did you start a call in WinMo and let it ring as you started HaRET? It's a necessary evil at this point (and the biggest bug with the current builds). But, even without that, you should be able to hear them on the earpiece.
Someone tried to convince me that those issues had to do with the radio rom. (sound working or not, power off working or not -- they're connected, and work on some devices but not others). I'm not convinced, but that may be just because I don't want to bother with reflashing my phone in order to test it.
