Hi, I recently DL'ed CheckUp from Apples site. When I loaded it up it said "Capability: 64-bit or 32-bit". Is this really right, I thought "Woooo!" when I saw this, but is it reliable. I've the last years model MacBook Pro 15.4" 2.40 GHz. If so, do I need a different version of Snow Leopard to make it faster? Same with XP, is there and XP version, or will I already have it? And do I start DL'ing the 64-bit stuff, on Windows and Mac? ( I'm running Windows in Boot Camp, when it works again... ) Thanks Joseph Duffy Note: I'm going to post about my Boot Camp issues, and will put a link here to it, if that's OK!