I got a brand new Toshiba NB520-11P as a present, the one with Harman/Kardon speakers. The problem is, the sound is crackling and sounds terrible. Not always, but you can't listen to music or use Skype, most of the sound is too messy. Speakers itself seem good and sound is nice, but the crackle ruins everything. The sound continued to crackle when connecting headphones, so I guess it can't be the speakers then?