Just got my Rio Receiver and everything works great, except for when I try and show the songs "By Artist". By Genre, Album, and Playlist work fine, but as soon as I do "By Artist" I get an Error -22. Any hints?

Never seen this one before. But just for the heck of it, scan through your tags and see if any of the files have something unusual in the Artist field. For instance, a huge number of characters, or random ascii garbage, or something like that.

Yeah, what I was thinking. But going through all the tracks will be a real hassle. Anyone know a tool that might scan them for weird things?

Just opening up your entire folder in WinAmp and looking at the playlist screen sorted by artist should be sufficient. A quick scroll through that should reveal any strangeness...