Hey, I got a funny "bug" I guess you could call it. It started only recently (probably since I upgraded to 3.1.2). When I got to "mydomain.com/wp-admin" it redirects me to "mydomain.com/wp-login.php?redirect_to=http%3A%2F%2Fmydomain.com%2Fwp-admin%2F&reauth=1" and if I try to login through this page, it doesn't work. I have to go back to mydomain.com/wp-admin (which then doesn't redirect me the second time) and I can log in.
I know that sounds confusing, and I hope I described it correctly. It freaked me out the first time it happened. I thought my website had been compromised.
Any advice as to why this is happening?