Lost all analog audio after installing HULU Add-on!

I've been using the latest standard version of Raspbmc on my 512K RPi without any problems. I'm connected to a TV set via an HDMI to DVI adapter cable and am using the analog output jack on the RPi for the sound. Everything was great until I used the BlueCop repository to install the Hulu Add-on (which seems to work fine, BTW). I've now lost ALL sound output from the analog output jack! I tried disabling (not uninstalling) the Hulu Add-on & rebooting, but that didn't help. I read one comment saying that "you have to disable audio engine add-on to be able to use analog audio", but I don't believe I'm using such an add-on (unless BlueCop added it!)

Any suggestions on how to get my sound working again would be greatly appreciated!

Wayne