I updated my SQL Server 2005 to SQL Server 2008. Everything worked great.
After a few weaks later, I tried to connect to the db in SQL Server Management Studio after I had restarted the PC and it won’t connect. Fired up SQL Server Configuration Manager and it wont show any single instance of the SQL Servers.
The problem? After I upgraded to SQL Server 2008, I should have started SQL Server Configuration Manager 2008 not 2005. It appears SSCM 2005 does not show 2008 instances after they were converted to 2008.