Hey guys. I got a new 15" MBP on the 10th of sept. Everything was great for the first week but today i got home from school and the computer is sluggish and laggy. For example: When I watch a movie on Youtube, the picture freezes and then goes again. This happens every maybe five seconds. Also lets say i take the cursor and move it across the dock, the dock take a while to respnd to my mouse movement. Or the dock lags when i go from the dock back to a program. Or if I try to scroll on a page it lags and stops moving for a little. Please if you have any advice besides a fresh install that would be great. I love this computer and dont want to have to take it back to Apple. Even right now when I am typing the computer will sort of freeze when I'm in the middle of a word and then finish it after it stops freezing. It's like the computer cant keep up with my typing. Please Help Me. Thanks.