I've also been having issues. I've been having issues with both Dreamhost AND CafeCommerce. I've been going back and forth with tech support since Thursday but they still can't seem to find the errors that are causing this problem. So to the OP I suggest that if you haven't done it already, email DH's tech support and let them know that you also have problems. I'm just wondering if there was a change somewhere and it broke the processors.