Sever URL instead of Domain in Address bar

Hello Everybody,

I found already some solutions on the web, but none of them work for me or maybe I just forgot something important…but from the beginning:

I own the domain: http://www.narangie.de
I have my WordPress at: http://genetis.grus.uberspace.de/narangie/
I forwarded the domain to the WordPress folder
–> Everything works fine so far

Problem: In the address bar the Serveraddress “http://genetis.grus.uberspace.de/narangie/” is shown and not “www.narangie.de”.

What I tried:
I went to Settings/General and adjusted the URLs there:
WordPress Address (URL): http://genetis.grus.uberspace.de/narangie/
Sire Address (URL): http://www.narangie.de
–> The links on my blog point to e.g. “http://www.narangie.de/?p=1065” but once loaded they are resolved to “http://genetis.grus.uberspace.de/narangie/?p=1065”

I also tried
– pointing the domain to the root folder with a index.php that points to /narangie
– forwarding to another WordPress installation o the same server just to make sure I didn’t play around too much wiht all the settings.

Does anybody have any suggestion how to get my domain in the address bar?

Thanks for any help 😉