How to do a search in the Discussion forum?

I did not see any search function in this site?

Thanks, guys. I think your answers take care of this issue.

I find the users with <None> as their login names in some of our SQL Server databases. They seems to work fine. The SQL Server does not complain it at...

Thank you all for good suggestions. I actually tried to delete the registry for SQL server, but I guess their entries spread in more than just \\KEY_LOCAL_MACHINE\Software\Microsoft\Microsoft SQL Server. So...