DECLINED unless 'text/html' but images never make it

[R.Munden]

I've a script (controlled by a <Location> directive) that wraps a standard
header and footer around an HTML page

I've this at the top of my script:

my $r = shift;
 return DECLINED unless ($r->content_type() eq 'text/html');

but any images that may be inline never make it to the browser (also, if I
explicitly call the image in question it never makes it to the browser).

Apache gives a 200 status code for these requests in the access log but
Netscape 6.2 just sits there and IE returns a 'Cannot find server...' error.

Any ideas, where to start looking, etc.?

--rjm--