So check this out...  If I have an FTB within an ajax updatepanel, any other dropdownlist controls within that panel do not fire their autopostbacks.  So I thought I'd be clever and load the FTB inside a placeholder during a postback to be used only when needed, and that loads the FTB and the dropdown's work, but now the FTB won't let you type anything into it.  Maddening.  I'll have to keep it the way it was and have a button to do what the auto-postback was going to do.  This is 2007 though and that feels so 2006 (or 2005)..

Update: It appears that people are wrapping their FTB's in Iframe's and using javascript to communicate changes back to the container page.  While that might work, I get nervous transmitting HTML between pages... Seems awfully Kludgy.   I hear Telerik's RAD Editor is ajax friendly and works inside an updatepanel, but I'd hate to pay $350 just for that when my rich text editor needs are fair simple...