Tips: Server Permission Needed

VIEW SERVER STATE permission required for the user to execute DMO objects with SQL Server 2005, 2008, and 2008 R2.

To identify the permission already exists / not:
IF EXISTS(SELECT 1 FROM fn_my_permissions(NULL,'SERVER')
WHERE permission_name = 'VIEW SERVER STATE')
SELECT 'Permission Exists' 'Permission'
ELSE
SELECT 'Permission not Exists' 'Permission'
Go

To grand permission to the login:
USE master
Go
GRANT VIEW SERVER STATE TO loginID
Go