Hi, I just bought a MacBook Pro this week (1st ever Mac) and I'm just going through everything and I've seen Time Machine. I've read up on it and I'd like to use it, but when I turn it on it does a scan and then it comes up with a boxing saying "AirPort utility was unable to find any AirPort wireless devices". So I'm not sure what to do now, like can I only use this feature if I have online space or do I need to have another computer on my network? I just don't know so can anyone help me please? Thanks in advanced.