Hi Raphael,
Thanks for your response. This is a standard server. I was connected to the server with UltraVNC, which is like be connected directly onto the server with a monitor and keyboard, so I didn't have to stand at the rack. The username is a domain admin with full rights.
The past issue that I was referring to under v6 had a fix listed on your Knowledge Base, which I had used in the past when running v6 on their other server.
I'm scheduled to go back to the customer location next week and it may be fixed. They were having some issues with the static IP Address reservation not being set properly on their DNS & DHCP server. I didn't retry connect with the Update Manager after things were fixed, but I'll send you an update next week once I know more. The issue may have been due to network connectivity. They also use a Proxy Server, though I entered the IP info into the "Configuration" menu.
How does the Update Manager react if it cannot connect to your servers? Does it continue to try to connect, which is why the background of the menu stayed white?
This morning, I ran the Update Manager on my laptop to upgrade to 7.1.1 and I noticed that the menu had a white background for about 10 seconds until it connected to your server and then refreshed with the download information.
Thanks again for your help.