All of a sudden there's no Game Center account associated with my device. When I go to log in to my current one (I was lucky enough to get my real name - Joe Koch) it takes me to a "create new account" dialogue. I know I have the password correct, since putting in a different one prompts me to try again. Why is my account not logging in? Why does it prompt me for a "new account" if it recognizes my e-mail and password? What should I do?