Problems Transferring Files to MP3 Player Solved

Yahoo! Music Jukebox would freeze when synchronizing a playlist to my Sansa Connect (Amazon) player. I reinstalled YMJ and even tried other programs, such as MediaMonkey, Windows Media Player, and Winamp. However, I think that the special features and tie-ins with Yahoo! Music make YMJ the most reliable option (sad as that may be). I found, however, that the problems were with the MTP protocol that was part of the installation of WMP 11. Reinstalling WMP 11 fixed the problems transferring music with YMJ to the Sansa.