Hi, I have a 2 year old Macbook Pro 15 inch with 4Gb of RAM. Ever since switching to Snow Leopard (clean install) it's been very slow. I decided to do another clean install this summer, but it's still very unresponsive: - Safari 5 (very slow and beachballing all the time) - Starting Office 11 applications can take over a minute - Finder - Switching apps can take up to 20 seconds - Mail - iTunes - ... The problem is that I can't find anything wrong with it. Clean software install, no apparent hardware defects, no errors in the logs, ... I already did the hardware test but it also says nothing is wrong. What else can I do? It's clearly not normal my 4 year old iMac is faster... Any tips?