I understand that you configured Squid based on the FAQ - however, the FAQ you referred to does not have an exact section on how to configure ncsa_auth. That is why I asked what the auth_param lines were.
Somehow I managed to miss you stating that you tested ncsa_auth from the command line, so you obviously created the password file correctly. However, did you make sure it was readable by the UID squid runs as (or make ncsa_auth SetUID/GID to a UID/GID that can read the file)? Transparent proxying does not work with authentication, so if the browser and proxy were set for transparent mode that needs to be corrected. I cannot provide any further assistance without more information. Adam --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.237 / Virus Database: 115 - Release Date: 3/7/2001