Alright, I verified the disk permissions now I am repairing the permissions. Also how can I maximize battery on my MacBook, I like the battery life right now, I have been using it for 1:30 and I hace 77% battery left with disk utility, adium, transmission, limewire, firefox with at least 5 tabs, iTunes and downloaded limwire (all programs running simultaneously except disk utility, just started it). i saw the better battery life option, but does it change the look? Also is my mac supposed to lag sometimes if I have all my programs running at the same time, downloading a video and running disk utulity.