Koen Verbeeck (2/21/2012)
I had to use this method once, but I still couldn't log in as I always got the error that someone was already logged in (and this was not the case).
You weren't using SQL Management Studio to try and connect, were you? That has an annoying habit of opening multiple logins, which doesn't work terribly well when SQL Server is running in single-user mode--this is why the article recommends using SQLCMD, I would imagine.