Again, the problem with filenames is more likely to be the name or path to a link. Unless you move the links and relink to the new location the path to the links will not change and it will not make a difference if that's the problem. Of course missing links, or out-of-date links could be a problem, so have you checked the link status?
As far as fonts, I thnik the reopts of problems I've seen have been either locked fonts or problems with auto-activation and collecting through the font manager.