I am new to mobile me and have a few questions about idisk. When I open idisk on my mac I have a number of folders, however there are 5 I am confused about, they are; Backup Library Software Web Groups They look like shortcuts to other folders and when I try to open them it asks me for my webdav name and password which I don't know. What are these folders used for? Also, am I right in saying anything I put in my public folder is what I can use to send people links from. Say I want to share a document, I put it in my public folder and send the link to someone else? I trust nobody can access any of my other folders unless they login into mobileme with my user name and password? Also if I start an account then do not renew it, then renew it later is all my data still there? I assume I cannot use my .me email address once the trial has expired? Also, if I put pictures into my gallery does that use up part of my 20GB allowance? Does the 20GB cover everything, email, calendar, contacts, idisk etc? Lastly, what is back to my mac? Sorry for all the newbie questions but if anyone can answer these I would be very grateful!