My problem is a bit complex... When I tried to add a song to my device (I had 1.4 GB still remaining) it took a ridiculously long time "synchronizing" so I selected the "stop synch" option on my windows media player. This caused the screen on my Mp3 player to freeze with the message "Do not disconnect device" and it did not respond to any of the buttons, play, Home/back, or pwr off/option. I eventually deceided to disconnect it and push the pinhole reset button on the back. That caused a different screen to come up on the player: "Connected USB (MTP) The Timer and Alarm will become Invalid." I have no idea what that means. When hooked up back to the computer, the computer acknowledges the device in the usual way but I am incapable of adding any more songs/files and the device itself will not play or respond when I press any buttons, including the off button. It is stuck on the "Connected USB..." screen. When I push the reset button, it goes black and displays the same screen again when I reactivate it. It seems the root of this problem is the premature cancellation of a synchronization and disconnection, but I have no idea how to fix it. Any advice would be appreciated.