I'm just throwing this out to see if anyone has experienced a similar problem and might have a solution. I've put an HTTRACK archive of a website up on batcave, just to have a reference to look at. For some reason, no images are showing up in Firefox, only (well, IE, Chrome, and Opera all show the site fine). When I inspect with Firebug, I see that all images have returned a 500 error, and the response headers say the connection is "close," instead of "keep-alive." When I inspect in Opera, for instance, the response headers list connection as "keep alive." So, if anyone has an idea what might be up, I'd love to hear suggestions. Thanks.