Thanks Dave. I tried to transcode the clip within premiere/Media Encoder but the clip showed the same tearing I was seeing in the original. I guess I could transcode the clips in a different application and then import them in, but doesn’t answer the question of why when I open a new project on my own system, I can play the clips just fine. It’s only when I am opening up a project created by another editor with a (PC) I get this message and the clips will not play back properly. In the past we have shared projects with no problems.