This problem seems to have resolved itself. The little window in the start menu that looks like a timer to the left of the lock button used to indicate that an update needed to be installed and when I clicked it, this one particular update would not install. I had detailed info on it which I used to search around for a solution, including on the MS web site, but to no avail. I could find references to it, and lots of indications that it was a known issue, but no simple solutions. Suddenly the update indicator stopped showing that one was available and all is well. Thanks a lot for taking the time to respond Computique! Are you in the Shop Centre?