If LW is too busy then the media player suffers. Easiest answer is to set your default audio player to play instead. Go to Tools>Options>Player & untick option & press apply. But you'll need to re-open LW for it to take effect. Then each time you preview or launch a song, your default audio player will play instead. For choices of audio players if you don't have a decent one, there's so so many. Here's a couple: QCD: http://www.quinnware.com/ or iTunes: http://www.apple.com/itunes/download/