OK, I have another question. I send the email address of the customer to Paypal via the button code: <input type="hidden" name="email" value="$field{email}"> However, I noticed, using the Sandbox, that the email form box on the Paypal page is always empty, even though the other fields that I send are filled in. At first I thought that maybe the @ in the address needed to be escaped, as it frequently does in Perl, but when I looked at the 'View Source' for my payment page, it was listed correctly. Has anybody else run up against this problem? Professor http://www.professorsopportunities.com