Comment moderation issue.

I run WordPress in my own host, wich is GoDaddy’s. I’ve tried changing my discussion settings a hundred of times, to make it so that I don’t have to moderate each comment that’s posted on my blog, but someway the settings doesn’t work. I uncheck “An administrator must always approve the comment” & “Comment author must have a previously approved comment”, but somehow these actions are not working for me, and having to approve each and every comment is a task I’m not willing to do.

Any advice here?

Thanks in advance