Me too.
Worked great for about 2 weeks, then all of a sudden gave me the logon prompt. The only way I could get it to do anything at all was to input my WordPress.com username [not my local blog username]. That generated a password recovery email – but it didn’t go to any of my email addresses. I’m stumped. I’m on the latest iteration of WP, hope it’s not a compatibility/version issue.
Can anyone shed some light on this issue?