So after using system restore to restore to an earlier point that I hadn't seen before (Sept when only Oct was showing earlier), it rebooted asking me to log in--except there were no accounts to login with! The only account I had was the Administrator account, and it was setup to auto-login. :(
Any ideas how to restore this? I researched this a ton a few months ago, but now I can't remember what the various solutions were. Any experience and expertise welcome.