I'm not exactly sure if anyone can help me with this but my MBP is very slow when I'm playing YouTube videos. The videos stutter and then audio sometimes is off sync with the video. I noticed this after installing OSX Lion and I'm trying to steer away from doing a clean install because I really do not have any device to backup my laptop with as of yet. I first thought maybe my computer was becoming dated but everything else on it runs fine and loads just as fast as it did day one when I took it out of the box. Any trouble shooting tips I can look at possibly? Thanks.