Using Vista and Microsoft Office 2007, when viewing file from the Enterprise Hub web application, you are repeatedly prompted to enter your Windows username and password. This is a known issue associated with Office 2007, please see:
http://support.microsoft.com/?id=943280
There are two solutions:
1. Edit the Registry
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WebClient\Parameters
AuthForwardServerList
http://myserver
, one on each line.2. Disable the 'WebClient' service on the client pc.