odbc_pconnect doesnt reuse connection

Hi! Configuration: WinXP, the latest Apache, PHP4 The problem is that every time the script runs and the following command is executed $cx=odbc_pconnect($G_dbname, $G_dblogin, $G_dbpassw); it happens very often that a new connection is created instead of reusing the old one! Is there any idea what's wrong... ? And another question - when user hits reload or submit button at the moment when actually this odbc_pconnect is in progress - it generates another connection leaving the old one (half opened or whatever) still alive.. So if you will click on submit button more than 10 times with a little short interval - we will get ODBC error - "Database server connection limit exceeded" I tried to set in PHP config file odbc.max_persistent = 1 but it still overgoes more than 1 connection to the same database, user and password.. What's wrong?