hmm, he asked me which AllowOverride he should enable … :-/ 🙂
my host did now enabled mod_rewrite … now it looks like everything works! … which AllowOverride should be enable? http://httpd.apache.org/docs/2.0/mod/core.html#allowoverride
… :-/ … can it be that my problem is also a db-problem?
yes – to both of your questions! :-/