> On the shipping box there is a picture of the receiver
> with a "display" which i cant select on my box.

I think that this display was an early prototype. Not all the fonts are the same, and there's no "Spectrum Analyzer" widget. However, it is possible to create your own interface, though not all features are well supported by the standard (or 3rd party) servers.

Sometime soon I'll post a perl script to make your own display layouts, in the meantime, if you're geeky enough to write your own tools, check out http://www.dasnet.org/David/Rio/Layout.html. I've not figured out how to add bitmaps or such, but you can at least move things around, make the scope bigger, and add a little "volume wedge" display.