I was having problems with my mac so apple told me I could possibly fix it by wiping my MBP and restoring it using time machine. Well that didn't fix my problem and it also made my life more difficult because now the project i'm working on seems to have something wrong with the video files. All the clips in the editing area don't even show a photo of what the video is of and the top area shows the pic but when you click on one to preview it it turns black and the play back is all black with no audio either. I have no idea what to do someone please help