XSPF Playlist link shows plain URL

Hey everyone,

after spending quite a time with drupal the last weeks, I still feel like a newbie.
Especially right now:
I set up an XSPF Playlist with the views module, but when I click the menu item linked to the playlist, I get a completely white page.
(pageadress:"http://ichiigai.hyperphp.com/?q=view/tracks" shows plain white page(no error code) with "http://ichiigai.hyperphp.com/ tracklist")

I checked out the instrucions over and over again... - so maybe anyone here can help!

Thanks!