CKFinder: ASP.NET User is not carried forward

Hi All,

I'm having a small problem with uploads from CKFinder, in my config.ascx I have the following code (or near enough) in the SetConfig method

BaseDir = GetUploadDirectoryForUser(HttpContext.Current.User.Identity.Name);

This seems to work fine when opening the popup, the folder populate correctly and I can see the current logged in user being used in the debugger. However, when I try to upload files the SetConfig fires again and this time the HttpContext.Current.User.Identity.Name field is always set to empty.

I'm guessing the upload request is not transmitting the forms authentication cookie information as it should. Is there a way to get this working?

Regards,
Chris Meek