Hey guys, The last couple of weeks I've saw my MacBook's performance drop. I keep getting 'the beach ball' for all sorts of things and the fans on my MacBook are always going crazy. It happens mostly when I'm watching any type of video. It will all be going fine but then all of a sudden the video will freeze for about 5 seconds but the audio will continue. It also happens even when I'm scrolling down pages that just contain text and not much information. Anyone know what could be wrong? Thanks!