Yes.Does it work without fail for you?
Perhaps, the problem, that happens with my unit, is different, although it has similar symptoms (overheating, then can't be turned on by usual holding of Power button, i.e. as if the battery was totally drained (which is not)).
My guess is that there is/are some bug(s) in software, that handles the music library (parses tags, sorts by Artists, Genres, etc.), and it reveals itself, when the library is bigger than N files + probably, some more intricate conditions. As a result of it, some process never ends during the Media Scan --> library is unavailable (constantly spinning circle in Main Menu --> Folder view) / overheating / shutdown.
Anyway, hopefully new FW will fix these stability issues.