This should be tested on multiple browsers, at least IE (multiple versions if possible), Firefox, Chrome.

• Enable AJAX & AJAX course editing
• Check that you get the 'drag and drop' handles to pickup blocks and move them around the course page
• Try moving blocks around and find ways to break the moving of blocks.
• After doing things in the interface, try opening the course page in another tab/browser and ensure the changes you made are reflected on the course page (i.e. they are 'saved on the server')