Hello everyone. I have a 5,1 unibody macbook for dec 2008. Its a 2GHz with 2 GB of ram. It has been a great computer but it is starting to get slow and somewhat laggy. Safari has crashed on my numerous times in the last few weeks. I am not using any Antivirus or anti spy/malware software. Any tips or tricks to make it fast again or run like new WITHOUT restoring it from my OSX CD. I do not want to have to backup all my photos, music and reinstall/ update WOW. This is my first mac.