nagios web interface problem

[hanchaohang]

I met a instreating problem. After I installed the nagios, and start the httpd service and nagios service successfully, But I got a problem .When I login in the nagios systen through
web interface http://192.168.2.10/nagios/(my address), It pops up a window, let me type into username and passwd. I typed using nagiosadmin and passwd which I configured before. But It told me that the passwd is incorrect. I have configured the password using the cmd as "htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin". What 's the matter?
I want to walk around this issue. so I modified the configured file "/etc/httpd/conf.d/nagios.conf", I comment the "Require valid-user" line. This issue is resolved temporarily.

Anyone can help me ?

[tonyyarusso]

Does /etc/httpd/conf.d/nagios.conf have /usr/local/nagios/etc/htpasswd.users defined as the user file?