Try sticking something (a comment or whatever) inside your <div id="postpreview"></div>
There used to be a bug where Gecko wouldn't attempt to render empty divs. If it hasn't been fixed, it might be the problem. ****************************************************** The discussion list for http://webstandardsgroup.org/ See http://webstandardsgroup.org/mail/guidelines.cfm for some hints on posting to the list & getting help ******************************************************
