hi, i setup my store to have only one payment method - Paypal Standard. Filled out everything in the fields, and set it as Active. When i tested the site and check out an item, on the select payment screen, it shows "No payment methods available" could someone please tell me what to do? the original setup was working just fine, i did removed the pay by credit card, money order options...etc., and leave only the Paypal Standard active.