I installed FCK locally and got everything working perfectly so I decided to install on the production box (staging site, not the live site).  Win2003, set the portal to use dynamic styles for both "List of available styles for the editor" and "Editor area CSS"

My editor shows nothing in the styles list and the content is rendering using something other than the styles of my site.

In the process of setting up the production site, I did get an error while it was attempting to load the styles which is when I found that it is using fckstyles.aspx?tabid=36 to dynamically load the styles for the listbox at least.  I tried placing that in the browser directly to see what kind of errors I would get back.  When I did this on local host, I got the XML file.  When I do this on the production box, I don't even get the top level element back.  Nor do I get any error messages and there is nothing in the event log for the site.

So, then I looked at the source code.  There is no exception handling in this file, so you'd think if it was throwing an exception, I'd see it on the screen when I called the file directly.  I also see that even if all of the css files were completely empty, I'd at least get the top level element back.  However, my browser does think that what it is getting back is XML, so that makes me think I am getting to the last lines in Page_Load.  The closest I can come up with is that somehow, an empty string was cached and now that's all it is returning.  But, since I've changed the css files that the cache is dependant on, I have to believe the cache would be cleared.

So, I've narrowed it as far as I can and still can't get it working.  Anybody have any bright ideas?