Cgi Error

[Euphoria]

Hi All,

I have a wedding website where the client can upload a monthly video through an admin area. We have just swapped hosts and when the client has been trying to upload a video it goes through the process of uploading etc. But then displays a CGI Error

"The specified CGI application misbehaved by not returning a complete set of HTTP headers."

I have no idea what this means or what i have to get changed etc. ANy help would be grateful.

Thanks
Euphoria