Greetings I am having a problem with mysql 5.0.21 on a new Dell quad dual-core Xeon box running RedHat Enterprise v4 which I have traced to DBI. I removed all the mysql/dbi/dbd rpms and installed the latest mysql from source and DBI and DBD from cpan. DBI passes all the tests. DBD fails with: t/10dsnlist..........DBI connect('test','',...) failed: Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2) at t/10dsnlist.t line 45 etc etc I see the same problem with my perl scripts that use DBD/DBI. Line 45 above is a call to DBI-connect which leads me to believe that's where the problem lies. It's a puzzler because mysql_config returns the correct /tmp/mysql.sock and /etc/my.cnf also points to /tmp/mysql.sock. I recall from the documentation that neither DBI nor DBD check the client config files. It behaves as though there is still a ghost of the DBI library somewhere. Can anyone point me to a *.so or *.pm or *.conf file to search for to delete so that the latest (correct) install has precedence? Thanks Mike