Here's an interesting problem: When I plug in my sennheiser 150's into my computer, stereo sound will work and sound will be coming out of both ears. However, when I plug them into my ipod touch 2g, it starts stuttering in my left ear, when I press on the wire, it clears up. Why is it working on my computer and my ipod? UPDATE: I have tried many other headphones of my friends and the sound keeps going out in one ear. I believe it's the pin on the inside of the headphone jack, any troubleshooting tips anyone?