Hi guys, I am having a problem with my imovie, and was just wondering if anyone had a solution for it. I was editing some footage off my go pro, when I sped up a certain piece of footage in the project and then some weird things happened; - When I changed the speed, suddenly the player in the top right went grey. - it would not let me click on each individual clip, as if it was crashing. Anyway, after I deleted that clip, it let me select the other individual clips and let me play...although with the box still grey. Everything was playing fine, the sound etc, just without the actual footage, with the screen literally just grey. Any advice to how to fix this? Thanks in advance.