I practically have the most expensive Macbook Pro you can get. I got it in January, and got every upgrade possible for my Pro when buying. I'm in College and at a dorm. Everything is moving slower on my computer. I used to download HD episodes on iTunes in "minutes." It now saying 12-15 hours per episode? Youtube videos and windows are loading slower as well. My roommate internet seems fine though? THIS HAS BEEN GOING ON FOR ABOUT TWO WEEKS. Could I have a virus? I filled a LOT OF STORAGE with iTunes btw. Usually everything works so smooth. Could it be a Virus. Help?