Hi, Really could do with some help/ opinions please. I'm using a 15" MacBook Pro...it's only 6 days old and it keeps hanging when i use it. When i got it it didn't have SL installed but it came with the disc so i installed that immediately. For the first 4 days it worked like a new Mac should..it was great. Over the last week i have been installing all the apps I need and putting some files on it, but nothing to much. However, when I use this Mac it keeps hanging...it has happened twice in the course of writing this so far. I am not even using the Mac intensively...I have Firefox, Mail, iTunes and Vuze open and it keeps hanging, in which time whatever i am doing freezes and I get the beech ball for a few seconds then everything resumes normally. Or if that doesn't occur iTunes will randomly pause then play again. I have repaired permissions, verified the disc etc...but it has continued to do so. This is driving me mad, it is unworkable and infuruating. Does anyone know of what may be causing this or ways to stop the problem. Seeing as the Mac is not a week old i might just take it back? Any thoughts please.