using PHPMyAdmin with SQL

Hi, I have installed PHPMyAdmin-2.2.0 on my webserver in a directory of one my virtual hosts. My machine is running Apache 1.3.12 and BIND DNS server. I have MySQL installed already and I have already tested successfully using the text commands. My Apache configuration has virtual host directives in it and my main page is a virtual host itself. On the browser when I type "www.mydomain.com/path_to_PHPMyadmin", to access it, I encounter an error message that says: MySQL Connection Fialed Host 'mydomain.com' is not allowed to connect this MySQL server. However when I type the host name on my browser 'ns.mydomain.com/path_to_PHPMyadmin', I can access PHPMyadmin successfully. Is there something that I have to set in MYSQL to allow it to recognize virtual host names? Can I do a cross server MySQL administration also. I mean put PHPMyAdmin on one server and have it administer the databases of a MySQL server located at a different machine with different IP? Thanks. Peter