The thing is that if you're using gdm then it allows normal users perform various actions, like mounting flashcards, etc. So, the moment gdm was switched of, i couldn't mount any usb stick or sd card or whatever. Well, i could, being a root, but not as normal user.
So, for now my solution was to add my user account to the admin category. You have to edit xml file "/etc/PolicyKit/PolicyKit.conf".
Now it looks like this:
Note that i added two usernames along with "root". That solved my automount problems.