This most often occurs mid-band (95 MHz through 100 MHz) with a few exceptions here and there, what doesn't display properly in this range is the callsign above the frequency. The Zune somehow makes up a callsign and puts that up there instead of what should be there, the rest of the RBDS data in this section of the band (program info, etc) displays OK and everything on the front and back ends of the band is fine and dandy. Does this have something to do with the signal quality or something like that?