About a month ago I upgraded from Windows98 to Windows 2000, and now when I go to close Excel 2000 the "X" in the upper right corner is grayed out. I can select File/Close, and then I get a message saying "Run-Time Error '91'" and "Object variable or With block variable not set". I don't know anything about debugging, so I have just put up with it. If it matters, I am on a LAN that uses Novell Groupwise.