Crackling music... Lately, songs that i have played many many times on my laptop seem to crackle. Especially the more heavy-metal type songs. It's not the speakers, i checked. And it isn't the songs, they used to play fine for the longest time, then eventually they started crackling more and more with each use... New songs i download don't crackle. I defragmended my laptop and the same problem remains. I switch media players, and it still happens. Even happens to the new naruto episodes i download It can possible be an overhating problem, but i got my laptop dusted and the problem remains. Any ideas?