Dynamics CRM Server 2011 “Unable to browse Active Directory Objects”

Hello,
We are trying to set up Dynamics CRM Server 2011 on Windows Server 2008 R2 Enterprise Edition(SERVER01):
Server (SERVER01) on which Dynamics CRM 2011 is being installed is a domain member with domain admin rights
Logged into SERVER01 with domain user account
The software and hardware prerequisites are met
We faced the error "Unable to browse Active Directory Objects" in Select Organization Unit. Hope we have provided complete information to help understand why we are facing this. Would anybody be able to help us in this regard?
Thanks in advance.
