[OSM-newbies] Potlatch not displaying anything but points

[Dominik Spies]

Hello,

I cant't figure out how to usw Potlatch the right way - I read the wiki, 
  I watched the videos..
When I do a edit, for example in Regensburg, Germany, I see nothing but 
some GPS traces and some points (bus stations, hospitals, post offices 
and so on). But there are no streets or anything else.. Is that 
behaviour normal? How can i fix this?

Second try with JOSM. I downloaded germany.osm from one of the mirrors. 
When I want to open it in JOSM, i get the error message that I'm out of 
memory - Task Manager telling me it consumed abozt 100MB. I got 2GB of 
RAM and plenty of it free..

Really anoying when nothing works..
-- 
Gruß,
Dominik Spies