10.7.3 update appears stuck
I am installing the 10.7.3 update via Software Update. The update appears stuck while "moving items into place." The progress indicator has not moved beyond roughly the 95% point in an hour. The progress indicator is simulating movement but no progress appears to be made. The screen is dimmed on the gray linen background. Has anyone else seen this? Any idea what to do?
(I am, of course, posting this on a different Mac, on which I have not yet tried to install the update.)
Mac OS X (10.7), iMacs, MacBook, and iPhone 4