figuring out DB::connect problems

I am trying to use the PEAR DB module. I am trying to diagnose why my DB::connect() call is failing, I assume it is because my DSN is not correct. However, it matches the examples given in the documentation. I am using PHP 4.2.1 on a Windows 98 machine, running MySQL 3.23.41, and Apache 1.3. My code attempting to connect via PEAR is $dsn = "mysql://jon:jon@flattop/tracker"; $db = DB::connect($dsn,true); if (DB::isError($db)) { die ("DB connection error: " . $db->getMessage()); } The error message I get is" "DB connection error: DB Error: not found" However, I can successfully connect to that database using the dbx_connect function: $link = dbx_connect (DBX_ODBC, "", "tracker", "jon", "jon") or die ("Could not connect"); works just fine. How can I go about figuring out what's wrong with the DSN? Or is there some aspect of installation (allowing MySQL connections?) for PEAR that I haven't done correctly? Thanks, Jon Hilbert