Hello Jennifer,
Please check this out on your SQL server.
HKLM\System\CurrentControlSet\Control\LSA
Dword DisableLoopbackCheck = 1 (KB 896861)
Reboot your SQL Server and try again.
This worked for me.
Kind Regards,
Pete Zerger MCSE(Messaging)
mail

ete.zerger@nospam.gmail.com
BLOG:http://www.it-jedi.net/