Hello,
I noticed that when Nikon NX2 is running at the same time with PM I have problems with changing star ratings in PM. Of course the file is not open in NX2 at the time. Either I can't change an existing star rating at all or it will return back to the previous value when I move on to the next file. I also cannot rename files in the folder unless I close NX2. This problem started with the latest release of PM 4.61 - I don't remember this problem with the version just before the latest. My computer has Windows XP.
Thanks,
Marketa