Hey, I'm getting a new mac soon, but I'm having a problem with the one my school provides us to use. It's the 2Ghz white macbook (from 2 years ago I think). It's got 2GB of RAM as well. I'm trying to watch 1080p videos such as this one: http://www.youtube.com/watch?v=N06dOIG3OZg&feature=related But, it's all choppy and not even playing correctly. I'm using the latest firefox. OS X v.10.5.7 (I can't upgrade because it's my schools computer, and they don't do upgrades until summer for the next year of students.) Here is the iStat Dashboard App's information while the video is playing: I took 2 pics.