I can't seem to be able to edit widgets using IE. For example, when I make changes to the text widget and click save, nothing updates. I have to resort to using Firefox to make the update. Does anyone else experience the same problem?
I added and edited the text widget in Wordpress 2.8.6 by IE6 and everything was OK. Have you changed anything in Wordpress files? Or it can be from one of the plugins. Disable plugins and try again.