Greetings, I tried backing up using Time Machine for the past week and all it does it freeze (longest time before forced shutdown was 5days). I am running 10.7.5, 15" MBP (early-11), a 256 GB SSD and 8GB RAM. I have this url from Apple: http://support.apple.com/kb/PH4077 to address some of the files. Your documents : ~/Documents and ~/Desktop Mail data and settings : ~/Library/Mail/V2 iTunes data and settings : ~/Music/iTunes/ iPhoto data and settings: ~/Pictures/iPhoto Library/ Address Book data and settings : ~/Library/Application Support/AddressBook iCal data and settings : ~/Library/Calendars/ Safari data and settings : ~/Library/Safari/ Fonts : ~/Library/Fonts/ Keychain data and settings : ~/Library/Keychains/ Stickies : ~/Library/StickiesDatabase Other preferences : ~/Library/Preferences/ But are there others? Thanks in advance!