Apologies for the problems you're having with your PERL code. Please understand that we typically do NOT provide programming support. However, we will at least look at it and see if it's something we can answer or point you in the correct direction. In this case, it appears that you're not defining the error message, so you're getting a blank screen. Check out this tutorial on setting up the error string in PERL.
I hope this helps to provide the answer to your problem. Let us know if you have any further questions or comments.
Thanks for the prompt response. This seems to be a problem with DBI -- I will continue researching it.