LW's media player is not the most reliable for playback (there's suppose to be improvements in LW 4.2 when it's released.) Might I suggest you change to your default player. Go to LW's menu Tools-Options & Player & then Untick the LW media player option. And then press BOTH the Apply & ok buttons.
If you want to change your default player, highlight/select an mp3 file, go to File-Properties & change the default app that opens it. |