[squid-users] requested URL not be retrieved

Hello all,

access.log show it after entered in gmail.com and on access the main
google page, and some others sites. it happen on IE7 and Firefox
2.0.0.9 on windows xp

10.7.7.41 - TCP_DENIED/400 - error:unsupported-request
-method
10.7.7.41 - TCP_DENIED/400 - error:unsupported-request-method
10.7.7.41 - TCP_DENIED/400 - error:unsupported-request-method
10.7.7.41 - TCP_DENIED/400 - error:unsupported-request-method
10.7.7.41 - TCP_DENIED/400 - error:unsupported-request-method
10.7.7.41 - TCP_DENIED/400 - error:unsupported-request-method
10.7.7.41 - TCP_DENIED/400 - error:unsupported-request-method
10.7.7.41 - TCP_DENIED/400 - error:unsupported-request-method
10.7.7.41 - TCP_DENIED/400 - error:unsupported-request-method
10.7.7.41 - TCP_DENIED/400 - error:unsupported-request-method
10.7.7.41 - TCP_DENIED/400 - error:unsupported-request-method

--------------------------------------------------------------------------
and the squid error page show it

ERROR
The requested URL could not be retrieved

While trying to process the request:

utmb=173272373; __utmc=173272373;
__utmz=173272373.1194545804.1.1.utmccn=(direct)|utmcsr=(direct)|utmcmd=(none);
TZ=120; GMAIL_RTT=250; GMAIL_LOGIN=T1194545801921/119454580192........

GET /mail/ HTTP/1.1
Accept-Encoding: gzip, deflate
Host: mail.google.com
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; pt-BR;
rv:1.8.1.9) Gecko/20071025 Firefox/2.0.0.9
Accept: text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5
Accept-Language: pt-br,pt;q=0.8,en-us;q=0.5,en;q=0.3
---------------: ------------
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 300
Connection: keep-alive
Cookie: __utma=173272373.649209981.1194545804.1194545804.1194545804.1; __

The following error was encountered:

    * Invalid Request

Some aspect of the HTTP Request is invalid. Possible problems:

    * Missing or unknown request method
    * Missing URL
    * Missing HTTP Identifier (HTTP/1.0)
    * Request is too large
    * Content-Length missing for POST or PUT requests
    * Illegal character in hostname; underscores are not allowed

-- 
Mauricio Paulo de Sousa