Working on the RomanLaw interface, I found that both IE and Opera were throwing JavaScript errors which I had a really hard time pinning down. Eventually I discovered the problem was a trailing comma in JQuery option assignment expressions like this:

 $("#tabK_keywords_container").resizable({
     minHeight: 200,
     minWidth: 200,
 });

That trailing comma has to go. In view of some other reported bugs with IE with the current release of JQuery UI, I'm working with today's SVN version, which seems pretty solid so far.

To debug the problem, I had to download and install Microsoft Script Debugger from here: http://www.microsoft.com/downloads/details.aspx?familyid=2f465be0-94fd-4569-b3c4-dffdf19ccd99&displaylang=en. And in a fabulous piece of irony, if you go to that page in IE, with the Script Debugger installed and activated, the debugger will pop up, then freeze, and you'll have to kill it, and then the browser. Go Microsoft.