I have a 2010 MPB. My computer has been getting really slow (it freezes and it slows my other apps) during the past several months. I found that clearing all the cookies/history of whatever browser I'm using is what helps speed it back up. I visit a lot of sites, but lately I haven't been visiting that many. Just a select few usually. I still have to clear my history at least 1-2 times a week though. I feel like this shouldn't be happening. In the past, this has happened and it usually gets worse and worse, to the point where I have to clear my cookies/history every day, or twice a day. I found that it helps me to switch the browser I'm using (I've rotated from Firefox -> Safari -> Chrome -> Firefox again), but the problem keeps coming up. Does anyone know why this could be happening? Should I do a hard reset? Thanks!