My problem was that PayPal said my credit card wasn't valid, which can't be, because it's a debit, and I deposited over a grand into it this past friday, which obviously I did not spend. I went and checked my cart, however, and it said my tickets were being held. This leaves me to conclude that my card is valid, but this was just a variation of the problems you guys were having? I dunno. Regardless, I am fortunate enough to have a friend who bought extras to make sure all his peeps can go, and hopefully there is nothing wrong with my card!