Hi. I just bought a brand new MacBook Pro. I was excited to enter into OSX since I've been using windows all my life. However, I feel like my mac isn't running as smoothly as it should be: scrolling in Safari is somewhat slow and laggy, some applications like Acrobate Reader, App Store and Microsoft Word are also pretty laggy (scrolling and editing is slow) and some of the graphic transitions (for example swiping between the two screens in LaunchPad) are a little delayed (not too sure about this last one, but i've noticed that my friend's older MBP does this faster). I've noticed that these problems are much less evident if i log into a guest account and run applications from there. Specs: - 2.5GHz dual-core Intel Core i5 - 4GB 1600MHz memory - 500GB 5400-rpm hard drive The computer is 4 days old - what could have gone wrong? Thank you!