Setup: file permissions

Hello!

I have copied the CE to my website folder and run /seutp.
The setup page signalled access right issues (everything else seems fine). So according to
http://wiki.oxidforge.org/Installation#Files_.26_Folder_Permission_Setup
I have changed the permissions to 777 of the directories (including files and subdirectories) and files:
/out/pictures/
/out/basic/src/
/log/
/tmp/
config.inc.php
/.htaccess

Since
/out/media/
was not existing, there was nothing to change (maybe this is the problem?).

Reloaded /setup again, but the access right issues remain.

Is there some more information available which files or directories cannot be accessed by setup? Any idea what I have to do?
Please help. Thank you.

Greetings,

Jörg