Solution Found. Due to Kiwi helpful comment, I tried solution in previous message and it worked. Yes, the box labeled "Allow Remove Assistance connection to this computer" was checked on the screen, but this must have been broken in the registry or elsewhere. We did uncheck this box and rebooted the computer. Then we rechecked the box and again rebooted the computer and that did fix the problem. It now works great. Thanks again for Kiwi giving me some good helpful suggestions. Thanks, David