[lingrlongr]

I have an Asus P5E-VM. This is what worked for me. I also didn't have to remove pulseaudio.

- Goto System > Preferences > Sound

- Choose your HDMI sound card from the dropdown (mine was HDA Intel HDMI (ALSA))

- Backup your current ~/.asoundrc
$ mv ~/.asoundrc{,.bak}

- Create a new .asoundrc with the following:

pcm.dmixer {
type dmix
ipc_key 1024
ipc_key_add_uid false
ipc_perm 0660
slave {
pcm "hw:0,3"
rate 48000
channels 2
period_time 0
period_size 1024
buffer_time 0
buffer_size 4096
}
}

pcm.!default {
type plug
slave.pcm "dmixer"
}

- In Boxee, goto Settings > System > Audio Hardware and configure like this:

Digital
Off
Off
default
default

For me these work:
mp3
dvd
dvd-iso
hulu
all other feeds i have tried (youtube, comedy central, etc)

Hope that helps...

Keith