OpenSuSE 11 and Sudo

Just to let you know again: in order to add a user to the sudoers, adding the user to the group "trusted" and configuring it in the Yast Module Sudo is NOT sufficient. What avocadohead has already pointed out in this article posted in this blog is valid as well for OpenSUSE 11, i.e. manually configuring the /etc/sudoers file and commenting out the lines indicated in the commented file.