I am just wondering if this is normal. Ill put the basic steps I followed here
1. Installed SQL Server 2008 R2 on Windows Server 2008 R2
2. On the SQL Server Installation set up an Instance - ABC rather than use the default Instance - MSSQSERVER
3. Installed a SharePoint Database to the named Instance - SQLSERVERNAME\ABC
4. I can connect and see the Sharepoint Databases on SQLSERVERNAME\ABC in SQL Management Studio but I can also see the Sharepoint Databases if I just connect to SQLSERVERNAME in SQL Management Studio
The problem is I don't know if this is expected behaviour or not?
Any help appreciated