mSQL and PHP 4.0.1

To Whom May Be of Help: I have PHP 4.0.1 and mSQL 2.0.11 installed on my RedHat 6.2 server. Every time I do an 'msql_connect(["localhost"]);' on my server through PHP, PHP seems to leave an open UNIX socket on the mSQL server, even though I may try to close it with 'msql_close();'. When I have too many connections, I usually have to reload Apache or restart msql2d (bad thing, that's why I prefer to reload Apache) to force those connections to close. I already tried turning off Persistent Links on PHP, and even sending a query without using 'msql_connect(["localhost"]);' or using 'msql_connect();'. Any help will be appreciated. Thanks, Luis O. Hernandez