Having similiar problem. I have wehtml editor in content page, when I save data, the postback happens but the editor is locked with no data. if I hit refresh, the data is there....?? driving me insane!!!
I have the same problem in Firefox. It is most odd, it's like it's not updating the internal form variable that sends the data back to the server. It must be a bug in the script somewhere.
See my post is this other thread:
http://community.infragistics.com/forums/p/27508/219415.aspx#219415