Internet Explorer & Images (Header() Question)

Hi I know this is off-topic, but never-the-less I'm hoping someone can help me anyway. Can any tell me what headers I need to send to make IE realise that an image i'm sending from the database is really of the type it is, and I specify? I'm currently sending the following headers: HTTP/1.1 200 OK Date: Fri, 08 Dec 2000 04:57:19 GMT Server: Apache/1.3.14 (Unix) mod_perl/1.24_01 PHP/4.0.3pl1 mod_ssl/2.7.1 OpenSSL/0.9.5a Pragma: no-cache Cache-control: no-cache Content-Disposition: inline; filename=image0.gif Content-Length: 56117 Connection: close Content-Type: image/gif Expires: Fri, 08 Dec 2000 04:57:19 GMT And IE insists that the image i'm trying to send it is a bitmap and should be saved as untitled.bmp The image is definately a GIF, as when I save it and run 'file image0.gif' it says it's a GIF, as does 'identify' from the ImageMagick package. Thanks in advance, Mark -- "Before man reaches the moon, your mail will be delivered within hours from New York to California, from England to India, by guided missile. We stand on the threshold of rocket mail." - Arthur Summerfield, US Postmaster General, 23 June 1959