1. Create a folder under and name it "CuteEditorTemp". 

2. Open your web.config and add the following entry: 

<add key="CuteEditorTempPath" value="~/CuteEditorTemp" />

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asp.net Chat http://cutesoft.net/ASP.NET+Chat/default.aspx
Web Messenger: http://cutesoft.net/Web-Messenger/default.aspx
asp.net wysiwyg editor: http://cutesoft.net/ASP.NET+WYSIWYG+Editor/default.aspx
asp wysiwyg html editor: http://cutesoft.net/ASP
asp.net Image Gallery: http://cutesoft.net/ASP.NET+Image+Gallery/default.aspx
Live Support: http://cutesoft.net/live-support/default.aspx

I'm also having the above problem.  I added the key as you suggested but had no success.  This problem only occurs in FireFox and not IE.  I noticed the release date on the AJAX Uploader is about a month later then that of the CuteEditor, is there a known issue with Firefox 3 and the ajax uploader?

The problem seems to stem from an UploadType of flash on the uploader inside the gallery windows.  Changing it to IFrame resolves the problem, however the bottom of the upload dialog that appears in the IFrame is cut off a few pixels.  Ideally I'd like to use the flash upload but if that's not possible is it possible for me to restyle that IFrame?

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asp.net Chat http://cutesoft.net/ASP.NET+Chat/default.aspx
Web Messenger: http://cutesoft.net/Web-Messenger/default.aspx
asp.net wysiwyg editor: http://cutesoft.net/ASP.NET+WYSIWYG+Editor/default.aspx
asp wysiwyg html editor: http://cutesoft.net/ASP
asp.net Image Gallery: http://cutesoft.net/ASP.NET+Image+Gallery/default.aspx
Live Support: http://cutesoft.net/live-support/default.aspx