mp3 don't work

[Kik49]

Hi,
I'm a new user and an enthusiast one; what a beautiful program. But, of course for a new user, I have a question. When I try to play mp3 music, the programs stop working and I can only force a break. What are I’m doing wrong??
By anticipation thanks,
Chris

[Dreamer]

Don't know, works good here.