Hi, I just got my new Ibook last week, switched from a pc. I've got a couple of questions and wondered if anyone could help me? 1. Should I or Should I not leave my Ibook on all time? (i've read some things about leaving it on to let diagnostics run and such?) 2. Is there a way to rename the macintosh HD on the desktop? 3. are there any sites for more keyboard shortcuts? 4. will my ibook scratch badly? Is there anything I can do to prevent them, and which scratch remover is better? icleaner/novous plastic polish/ice creame 5. Is there anything i need to do manually to ensure the best performance from my ibook? Please also include any other tips or suggestions for me, if you would like. thank you in advance.