I got my new 15" PB two days ago, I'M LOVING IT! However, being a PC years for so many years, I must admit that I'm a complete dummy on Mac. 1. When I turned on my computer for the first time, it asked me for registration. Maybe I was too excited on my new PB, I made a typo while registering. Now I can see my typo all the time, when turning on the computer... in the computer name...etc etc. This is quite annoying for me and I really want to change it. 2. I installed IE and MSN Messenger on my PB. Then I place both shortcuts on my 'quick launch' menu. Weird things is....after I logged out, I found that the MSN Messenger is completely gone! Shortcuts no longer in the 'quick launch', I performed a command search and can't find anything related to 'msn'. However, the IE is still there. So I tried to narrow it down from a Windows approch, I thought it might be a user profile things like WinXP. But quickly I ruled out this reason, because I have only one single user set up on my PB, so it couldn't be a profile thing, right? Being a Mac dummy, I can't think of any solutions for the above issues. Anyone can provide me some insight? Thanks a lot.