I have not been able to install 1204 successfully.
I used kubuntu 1204.3 desktop CD image.
The install went ok, it rebooted into the AV wizard. DHCPD does not appear to be running on the core after the install. I also wasn't able to get a media director screen to come up on my core, just a black screen, however that problem is gone after I updated today and rebooted. Media Director onscreen orbiter will now come up on the core. I still don't have dhcp server though, so hard to go much further...