I've searched and haven't seen this particular problem. My Z140 starts up fine and functions normally for about a minute, then all of a sudden the screen becomes unresponsive and all the buttons act like the ">" button including eject. If I hit volume up or down, the volume changes but it also acts like I hit the ">" button as well. Anyone come across this?I had this problem a couple of years ago with my Z3 before I threw it away.