"Update Template Files" not working, Dreamweaver CS5

Question

"Update Template Files" does not seem to be working in Dreamweaver CS5.
After making a change to a template and saving it, I get the "Update Template Files" dialog box. It lists all of the files based on the template. So, I click "Update". Then, the "Update Pages" dialog box appears. Any files to be updated already open in Dreamweaver are modified correctly - in memory, that is. However, closed files do not get modified. The "Update Pages" dialog box seems to just get hung up. It just sits there with a status of "Updating...".
Is this an installation issue? ... a template issue?  ... or what?
FYI: I am using the 32-bit version for 32-bit Windows Vista.

Answer 1

Not that it will be of any use, the template is here: http://docs.google.com/leaf?id=0B4haLf-RrxgTZjVhYzEwOWYtNmMyMC00MWVmLWJiNDgtYTYzM2QzZDI5Zm Fh&hl=en
There have been, of course, numerous updates to it since the problem disappeared.
As for the specifics of what I was trying to change when the problem was first encountered, I was attempting to change a link URI in the navigation bar. However, any change at all would end the same way, with a locked up template synchronizer (or whatever the mechanism is called). Just before I gave up testing, I was repeating the process of simply adding a space anywhere and removing it in order to trigger the modified flag.