I bought the
HAiCOM HI-303E from buygpsnow and am also from Maryland. I as well get active guidance in Maryland but have not tried it outside of Maryland yet. My map names follow the same naming standard as zizzybaloobah but my cd says Mapopolis Navigator. I can't check the actual contents of the cd because it's at home but my Axim shows the same names as zizzybaloobah.
Mapopolis support has got to be one of the best so I would email them and they will respond quickly with an answer I am sure.