Logins gone?

[Jason Birch]

Hi,

Today a user tried to connect to a server that I set up for
experimentation.  His login did not work.  I tried my admin
user/password and they did not work either.  Anybody have some
troubleshooting steps for me?

I'm guessing that I have a corrupt site and that I'll have to reinstall,
which isn't too bad in this case.  Is there any way to avoid this, or to
mitigate the effects?  It's always possible that both of us recorded the
wrong passwords but...

Thanks,
Jason