When I try to edit an assignment, the description is displayed in HTML and the editor is not available. Below the assignment window, there are four options: HTML format, Moodle auto-format, plain text format, markdown format. Moodle auto-format is selected.
When I change the dropdown to HTML format, save and reopen to edit, the editor is available. However, the other three dropdown options are missing and HTML format is the only option.
This occurs in Firefox 6.0.2 and IE 9.0.8