I have searched up and down this site and i can't find the answer and i don't have time to waste so sorry if this is a repost. I just downloaded 2.2 the other day and now i have tried to play my music and it says the player does not support the music file. They are m4a and mp3 files. I have a mac so i just copy and paste to a file folder becuase i can't use the program that is supported by verizon since Droid X is a windows based phone and verizon doesn't offer the iPhone yet. If anyone has any suggestions I would love to hear them becuase i am very upset with my droid x right now! thanks in advance.