[Zope] Odd problem after upgrading to 2.6

I upgraded to Zope 2.6 recently and when I log onto the server via http://staticip:8080 I get access but the left-hand frame of the ZMI is already expanded and "pointing" to a now deleted instance of a CMF. What happens is that I get a page not found error in the right-hand frame. I can click on the left-hand frame and navigate successfully after that, but it is a bit strange (and aggravating to a degree) that I get this behavior when others utilizing the system do not. Any ideas as to why this is happening? Thanks, Kevin