Durgesh I just ran that query and it shows that I am the Deployment Administrator and I am logged into the server using that account,
Here are the stack messages:
at System.DirectoryServices.ActiveDirectory.PropertyManager.GetPropertyValue(DirectoryContext context, DirectoryEntry directoryEntry, String propertyName)
at System.DirectoryServices.ActiveDirectory.Domain.GetDomain(DirectoryContext context)
at Microsoft.Crm.Admin.AdminService.ConfigDBSecurity.SystemUserService.GetCaseSafeName(String domain, String accountName)
at Microsoft.Crm.Admin.AdminService.ConfigDBSecurity.SystemUserService.GetCaseSafeName(String name)
at Microsoft.Crm.Admin.AdminService.ConfigDBSecurity.SystemUserService.GetIdsFromName(String userName)
at Microsoft.Crm.Admin.AdminService.ConfigDBSecurity.SecurityRoleService.TryVerifyUser(String userName, SecurityRole role)
at Microsoft.Crm.Tools.Admin.SystemUserController.TryVerifyUser()
at Microsoft.Crm.Tools.Admin.DMSnapInHelper.DisplayMessageBoxIfCurrentUserIsNotSystemUser(Console console)
at Microsoft.Crm.Tools.Admin.DMSnapIn.OnInitialize()
at Microsoft.ManagementConsole.SnapInBase.Initialized()
at Microsoft.ManagementConsole.Internal.SnapInClient.Microsoft.ManagementConsole.Internal.ISnapInClient.Initialize(ISnapInPlatform snapInPlatform)
at Microsoft.ManagementConsole.Executive.SnapInInitializationOperation.OnStart()
at Microsoft.ManagementConsole.Executive.RunningOperationsTable.EnqueueOperation(Operation operation)
at Microsoft.ManagementConsole.Advanced.FrameworkSnapInFactory.Microsoft.ManagementConsole.Advanced.ISnapInFactory.CreateSnapIn(Int32 bookkeepingId, String snapInKey, Object& snapIn)