For unknown reasons, my Flash plugin stopped working properly about 2 weeks ago. If I start to play a video, it works fine for about 5 seconds, but then it causes the CPU to jump to 110%+, and the video starts to stutter/freeze. It makes content unwatchable. This happens in both Safari and Firefox. I have both browsers fully updated, and I have Flash 126.96.36.199 installed. I tried reinstalling Flash, but that did nothing. I do not experience any playback issues on my PC. I'm using a 13 rMBP. Any help would be greatly appreciated as I'm at the end of my rope. Thanks.