Take a look at the ->trace() method. It allows your script to generate copious amounts of debug information related to DBI. Also, try moving this script to a standalone (as opposed to a CGI) so that you can easily check and troubleshoot.

Also please be aware that I made a mistake in my earlier post. You were indeed correct when using undef in the ->do() statements. Probably it was the time...

Best regards

-lem, but some call me fokat