My workflow in LR is to do all of my editing, etc. and then open Bridge and change all of the file names to reflect more discriptive titles. I then switch back to LR (4.3). In the past this would result in all of my edit pictures involved in this process showing the infamous question mark, BUT also the new discriptive names. I would then sync and all would be well. Now the file name does not change and the question mark does not show. The folder needs to be sync'ed and since I know that I do so and all of the titles then change in the LR view.
One other piece of data - I installed win7 64 bit (was on 32 bit) and of course reinstalled LR and CS5. I suspect there is some preference setting I need to change to have LR reflect the new file name and thereby need a sync and so indicate it, but I don't know what it is. I could use some advice on this one. Thanks.