Sennheiser PC 350 Problem? Win 7?

Does anyone have issues with audio on their headsets? What I mean is I just bought a Sennheiser PC 350, and I have a weird audio problem that is pretty annoying on my left earpiece. Whenever I tap or rub up against the wire connecting to my left earpiece is get a loud tapping or rubbing noise played into my ear, like I'm wearing a stethoscope. If I tap on the wire behind the mute/volume control box on the headset it doesn't make any noise, only on the part from the mute/volume control box and wire leading up to my headphones. Is there anyway to fix this issue?

I just asked my friend and he said he has the same problem with his headset, I think it just might be a general problem with circumaural headphones. It's the same effect as when you put your ear flat on a table and tap on the same table, because sound travels better through solids then it does through the air so the noise is amplified. I'm not sure if there is a way to fix it or not but I get that effect on my headphones, even the slightest movement causes the cord that is hanging down towards the ground to rub up against my chair and make a scratching noise that is amplified into my ear, and it's pretty annoying, but I'll probably eventually get used to it.