Auto Logon - Server 2008

I have recenty installed a BIG-IP and have run into a problem with "Remote Desktop" sessions to Server 2008.

 

I am using webtops with multiple remote desktop options for our end users to access out servers.

 

I am using Active direcory authentication and when users signon to any of the 2003 servers (via webtops and remote desktop options) , their apm signon credentials work perfectly.

 

Unfortunately, the 2008 Servers constanly prompt for the user to renter their credentials even with auto logon enabled in the remote desktop webtops. It seems to always defaults to the2008 server machine name (machinename\username) and therefore the login fails unless the user reenters their login name with the correct domain( domain\username) manually each time.

 

Any tips in resolving this would be gretly appreciated.