can you look at the headers as reported by firebug and see if they
match?

c dropped bits saying:

> I just ran this against our site (arstechnica.com) and it informed me that we
should gzip our CSS and JS. This is quite curious because we do gzip this
content and I verified just to be sure:
>
> ---
> [~] curl -v --header "Accept-Encoding: compress, gzip"
"http://arstechnica.com/mt-static/plugins/ArsTheme/style/structure.css?v12469097\
21"
> * About to connect() to arstechnica.com port 80 (#0)
> * Trying 75.102.3.15... connected
> * Connected to arstechnica.com (75.102.3.15) port 80 (#0)
>> GET /mt-static/plugins/ArsTheme/style/structure.css?v1246909721 HTTP/1.1
>> User-Agent: curl/7.16.3 (powerpc-apple-darwin9.0) libcurl/7.16.3
OpenSSL/0.9.7l zlib/1.2.3
>> Host: arstechnica.com
>> Accept: */*
>> Accept-Encoding: compress, gzip
>>
> < HTTP/1.1 200 OK
> < Vary: Accept-Encoding
> < Content-Encoding: gzip
> < Last-Modified: Mon, 06 Jul 2009 19:48:41 GMT
> < ETag: "2784659453"
> < Content-Type: text/css
> < Expires: Thu, 23 Jul 2009 19:50:39 GMT
> < Cache-Control: max-age=1209600
> < Accept-Ranges: bytes
> < Content-Length: 4239
> < Date: Thu, 09 Jul 2009 19:50:39 GMT
> < Server: lighttpd/1.4.20
> ---
>
> Is this a known bug in this version? This was the v1 test, run on FF 3.5 and
Firebug 1.4.0b7.
>
>
>
> ------------------------------------
>
>