I?ve purchased my macbook three weeks ago and started to used it right away(nothing could?ve stopped me from doing it) but last week I suddenly had a problem with it. When I turned my macbook on it opened Set Up Assistant(as it does when opened first time)...I wrote all the information once again there and when finished it just jumped back to the start of the Set Up Assistant. I couldn?t get anywhere from that. I needed to install the Leopard all over to get it working. I noticed that there was a quite a lot stuff saved in desktop so could that have caused the problem and I think I?m going to return the macbook to the store to be replaced. Is that saving to the desktop thing that crucial?