Hi jean-francois,
Could you give us some more information? You're using Bridge CC and it's up to date? 6.1.1.10? You don't see the initial frame of the movie in Bridge? You're viewing the .mov, etc., in the Preview panel, and when you click on the play button it doesn't do anything? Or are you saying any effort at all to view the file crashes Bridge? Have you tried purging the cache for the folder? Sometimes that helps to get Bridge to respond.
I'm on a Mac with an Nvidia GT 750 and it's all working fine here.