Hello, Sometimes, randomly, after I sync music to my DX, the playback doesn't work for some random given song. Whenever it doesn't work, it is consistent with which song doesn't playback, so it may never play song x but always plays song z, but it is random about which song it does play back after I sync. I could sync one song one minute, and have that one work fine, then I could decide a minute later I want another song on my DX and I would sync that and it will just not play. It seems to be syncing correctly if I look at windows explorer (I am not using windows media player to sync, I'm just opening up the memory card's directory and directly dragging songs into there). Any suggestions?