Operating System:
Windows XP
Web Browser:
Internet Explorer, Firefox.

Detailed Problem Description:
Paypal asks to me to add a credit card and when I've done so, it says the credit card has already been added to the account. There is no feature which allows me to select a current credit card. What's up? (I'm trying to buy membership with the pay now feature)

Does the problem occur:
Every time?
Yes.

On other computers?
Yes.