I have actually been experiencing this problem for a while. When I moved to version 7, the rich text editor stopped working. To get around this I have been using HTML in the text editor but I am now opening up my hosting a bit and need to be able to have non-programmers use the editor to maintain the content.
If you need to see an example, please go to:
www.hscommunity.org/winblad
you can log in as winbladadmin/Password1.
This will give you admin rights on this sample website.