Posting Articles = Back to registered users???

Some of my users who write blogs for our site have been reporting that when they save a draft of their article, or even try to publish an article, it reverts them back to a registered user. Currently my Authors have the group of Author, Manager, and Registered User. When they post an article or save as a draft, they loose all access to post an article. I have to go into the site under the Joomla users and change their access back to the 3 listed above. Can you guys go in and check it out and let me know what is going on? I have had it happen to me but I thought I fixed it, but it looks like it is not fixed yet. I think it is with EasyBlog, but I am unsure. Any help is appreciated, and thank you in advance for looking into this. It might be hard to duplicate but I know it is happening because I get reports all the time from different users who experience this.