Hydroglow,
Well, it's kinda like this: Apple's Aqua interface is secretly made of an iron-cobalt-copper alloy. I can't say in what proportions these metals are in the Aqua interface because I'm under a non-disclosure agreement. But, I can say this, the cobalt-copper portion of the formulation gives the Aqua interface it's cool blue color and the iron provides structural rigidity. The sound prefs button slides to the right because iron is diamagnetic and in the presence of an electromagnetic field will be either pushed or pulled depending on the polarity of the field.
ramseyt,
Dude, if your button slides to either side "randomly", you have some serious magnetic flux going on in your vicinity. Do you experience halucinations? Are you irritable some of the time? These are classic symptoms of gamma ray and tachyon emissions and that little button sliding around your screen could very well SAVE YOUR LIFE! You have to eliminate the source of the problem or wrap a wet towel around your head, then cover it with tin foil.