Hi Harvey,

So, the previous server was not in Medium Trust? I would check the previous Web.config and compare against the medium trust version for any differences in FCKeditor configuration. Maybe something was incorrect in the medium trust version of web.config and can be corrected by getting the settings from the previous web.config. For the latest version of mojoprtal the settings look like this, but are probably different if you are using an older version.

<add key="FCKeditor:Debug" value="false" />
<add key="FCKeditor:CustomConfigPath" value="~/ClientScript/mojofckconfig.js" />
<add key="FCKeditor:StylesXmlPath" value="/Services/EditorStyles.ashx" />
<add key="FCKeditor:BasePath" value="~/ClientScript/fckeditor263/" />
<add key="FileBrowserRelativePath" value="~/ClientScript/fckeditor263/editor/filemanager/browser/default/browser.html" />
<add key="ImageBrowserRelativePath" value="~/ClientScript/fckeditor263/editor/filemanager/browser/default/browser.html" />
<add key="FileBrowserServiceRelativePath" value="/Dialog/FileBrowseConnector.aspx" />
<add key="ImageBrowserServiceRelativePath" value="/Dialog/FileBrowseConnector.aspx" />
<add key="LinkBrowserServiceRelativePath" value="/Dialog/LinkBrowseConnector.aspx" />
<add key="FileBrowserUseService" value="true" />

Hope it helps,

Joe