Problem here as well. It worked for the first week after the switch, then kaput. We use the radio over an extender on our TV setup out by our pool.
I am looking at the registry to see if I can export the part for the analog FM radio and enable it again, basing it off of the parts from this thread:
http://thegreenbutton.com/forums/thread/349057.aspx
However, based on the time involved I may just use our portable iPod radio when we go outside now...plus the fact the outside/shaded temperatures are getting beyond the specs for the extender.
Does radio even work in Windows 7?