Using credit cards to pay monthly via PayPal is not working

Hello Support:

Using the Membership plugin and PayPal Standard as our payment gateway on our site, Apparently you can't use credit cards (NOT paying via their PayPal email addresses) on the monthly payments. Only on the yearly. Some of our members want to pay monthly using credit cards.

How do we solve this using PayPal....???

Thanx in advance.

Unrelated P.S.: Where do I update my email address inside