I've had my new MBP 15" for about 6 months. I love it, but have noticed recently that there is a lot of lag, and a lot of that spinning rainbow circle when loading safari pages. It happens with even simple pages that have mostly text. I was previously a PC user and would have just defragmented the hard drive, or did some other tricks to help clean up the system. Im new to mac and I don't know what the equivalent would be or why there is so much lag. Anyone have any suggestions? I appreciate all the help (yes i searched, but didnt find what i was looking for) Thanks in advance!