Admin user bonked

I upgraded to 1.2 yesterday, and everything seemed to be working happily. I had to clear out my cookies in Safari to login happily, but no worries. Then, I tried to login as the admin user today, and when I hit “login” from the logn page, I was happily transported back to the login page with no error message. When I clicked the “forgot password” link and entered the admin/pass, it came back with an error saying that there is no user by that name. Any ideas?
Thanks!