I have a few controls sitting on an update panel (including the TextEditor)... when any of the other controls causes a "postback" to the updatepanel, the TextEditor loses all the content that had previously been added to it (that is, *new* content).  If I go in and am editing the item, a "postback" to the updatepanel causes it to revert to whatever data had been initially loaded.

Ideas?

hey fooberichu,
  I had the EXACT same problem (pulled my hair out for day trying to figure it out), it is a know bug with the FCKEditor and the UpdatePanels.
Here is the thread that seems to work:
http://forums.asp.net/thread/1406390.aspx

Let me know if you can't get it to work and I will post my exact code for you.

Gary

You can try that one, but I couldn't get that one to work...There is another one in there that has a Javascript funtion that someone call "FCKHack", which is the solution that ended up working for me.

let me know if you have problems