Hei,
Sorry for the late response. I was hoping someone with better advice would answer, then I got caught up in something.
Have you tried looking for the file manually? Reinstalling does not help if the source does not have the missing file, or puts it repeatedly in the same wrong place. I usually copy a wrongly-placed file into several directories, to make sure at least one fo them adds up in the right spot.
If the thing is missing as the system says, then well... Find the file and install it. Maybe a friend has a disc that does not miss that file?