I’m setting up a new instance of WordPress 2.0.6 on a server at my university and finding a similar problem. When I use the “Write” feature on the Admin interface, I cannot view the rich text editor icons–instead, I can only view their textual equivalents, e.g., “img” instead of the image icon. This occurs in both Firefox and Internet Explorer.
I’ve confirmed that the checkbox to use the rich text editor by default in Users->Your Profile is checked, and further I’ve confirmed that the Options->Writing checkbox “Users should use the visual rich editor by default” is checked. I’ve reloaded these windows multiple times, and nothing has changed that.
But here’s the strange thing: I have also configured a new installation of WordPress 2.0.6 on my personal computer (where I have Apache and MySQL locally running) and the rich text editor shows up fine in both Firefox and IE.
When I view my WordPress installation on my university server in Firefox, the Error Console says that TinyMCE is not defined. So for some reason TinyMCE is not being instantiated on my university server. I confirmed that the js and tinymce directories are world-readable. Is there some setting on my university server that could be messing it up? Incidentially, I’ve used Javascript on non-Wordpress files before on this same university server with no problem, so I know that the server handles Javascript without any problem (although as a client-side technology, server settings shouldn’t matter anyway, right?)