Add Windows domain group into SQL Server 2005 Login list

To add a Windows user group as a SQL Server 2005 login:

• Under Management Studio, right click on Security\Logins, and select "New Login ...".
  
• In the "Login - New" window, click [Search..]
• Check the "Groups" checkbox, then click [OK]
• Click [Advnaced]
• Click [Object Types]
• Make sure the location is listing the right machine or domain, otherwise click [Locations...] in case you need to change.
  
• Click [Find now]

Your domain group should be in the list.