I have had pratically the same problem. I dropped my NWA-1000 once, and now sound only comes out of one headphone. if i push down on the headphone jack, i will then be able to hear out of both, but it is a hassle to keep pushing it down. Also when i change songs, the beep no longer functions. me too, i have had thoughts about taking the back off but im not sure if i will either solve the problem, or cause an even bigger problem. Please, if anyone has suggestions for the both of us, it would be very much appreciated.