Mac OSX 10.5.2 - video files problem

[spy974]

Hi all,

once I installed Zephyroth leopard (rev2), I downloaded vlc. But when I select a video file (any codecs, format...), VLC disappears.
Do you know how I could find out what is the problem please? can you , all, tell me which video player, you use ?

Thanks,

SpY974