question about song lagging

[Megmo]

Vista is what I'm sitting on now and it sucks. I can't wait to get my own computer later this month, only thing is I'm poor and can't afford a mac so it will probably be another crappy Vista since it costs half as much. It doesn't lag so much as skips during songs, but when it does lag I have to unplug the internet router or whatever and plug it back in to reset it and that usually brings me back up to speed.