>This may have been answered some time back but IE7 was just implemented here recently. I am noting that when logged in to the UT, if for any resaon another instance of IE7 is launched, I then get a "You cannot be authenticated ..." message from the UT. Is this an IE issue, a UT issue or some combination and is there any way to correct it?

The security might be too high. There is a section in that document that talks about that:

http://www.levelextreme.com/Troubleshooting.asp