I have an iMac 2.8 GHz i7 with 16 GB RAM running 10.8.2 (12C54) I have a hard-drive connected via FW800 and have allocated 1.2 TB for use by Time Machine. What is going on? How can I solve this? How ...

Losing something you spent time working on, or photos that you can't replace, is devastating. You might think this is a problem of the past because of cloud storage services like Apple's own iCloud, ...