Hi there, My 2010 White MacBook is driving me crazy, so I hope someone can give me a little guidance. This problem has only started occurring recently, it's struggling to play SD YouTube videos without missing frames and stalling. HD video is out of the question, it will just crash Safari within the first second of playing. I found that resetting Safari fixes the problem, but this is not a long term solution and will just comes back after a day or two. Does anybody have some suggestions that could perhaps fix this?