I've seen this issue with 0.1.5, but not with 0.1.6. What I noticed is that if I start a song from the Rio itself, and then go to the Player tab in the web applet, it works. However, if I reboot the Rios and try to go to the Player tab first thing, no luck. Typically, I just play a shoutcast stream once I reboot the box physically and then the web applet seems to work.

Hope this helps...

Rob