I've noticed how my MBP performs. In the past 1 week, it's run really smoothly. It never lags nor crashes on me. But there is one thing I'm concerned: even when I'm just using safari to surf web and iTunes for music, 2GB of RAM is wired and active. Does it really take that much? Or, (here comes a stupid question), does it take that much RAM to help my MBP run smoothly? Here is a screenshot: I also use iFreeMem to clear out all the inactive memory on my computer. Before and after I use it, the computer is really fast. But during the time it processes, it's really slow. Is it common? Is using iFreeMem too much will harm the RAM?