I am engaged in getting my staff to start sending me the names of those who are affected.
This user had the issue today and was unable to retrieve his password through the system:
http://www.zealotgaming.com/forum/member.php?u=4818
I manually sent an email from the admin panel and he was able to use that.
I have manually edited the database users, tried to manually input a new password via the Admin Panel. I have changed the email, etc. None of these things work except the method I described above, and that only works about half of the time.