Here's a situation that is cooking my noodle. dsader (bless him), made a great plugin that allows users to automatically add themselves to a community blog (http://mu.wordpress.org/forums/topic.php?id=5865&page&replies=17#post-35213).
What's happening is that for different users, the formatting icons associated with Visual and Code text box when Writing a Post (or Page) vanish (when using the visual editor). See this image example: http://www.xandria.ca/yjtutorials/writepage07b.gif
If these people remove the visual editor option from their blog and initiate a Post in one of these communities, the icons return (although one is in Code Mode, naturally).
Browser software and version does not seem to make a difference.
Originally I had removed the plugin, re-enabled it, and it seemed to act as a cure but no more.
Near as I can figure, the issue is that for some people, the Visual editor is disabling the appearance of the formatting icons when trying to post to a community blog that has the Add User plugin enabled.
This makes no sense. Especially now that if I remove the Add User Plugin, it no longer makes a difference.
Thoughts, help? Please and thank you.