It seems that I go through I lot of pairs of headphones. Now, I'm not buying the most expensive ones on the market. But it seems that after awhile, headphones I use just seem to die on me for no apparent reason. One day, they are fine, the next, they go bad. Sometimes it seems to have to do with the position of the wires and even just turning my head slightly causes them to cut out. Anyone else have these problems? Anyone know what causes them to die?