I purchased my first MAC about 3 years ago. An Imac. Since the IMAC, i now own: 2 mac book pros mac air mac mini and time capsule I still have a Dell PC which I'm using now. Time Capsule and Time Machine are less than as I believed them to be. I had always believed that you buy a MAC because MAC's work Well, say it ain't so Joe. The time capsule is not working well. I've had to reformat 2 times and the 3rd time has been no better. So I will take the blame because I don't know what I'm doing. Are there any best practices on how to make the time capsule and time machine work? Something to help me determine what I'm doing wrong. Like, will the backup work if the MAC goes to sleep? I shut my time capsule down everyday. Good Idea? I don't back up the computers everyday. Sometimes the time period between the backups could be a week or longer. etc, etc.... at this point I'm disappointed with the results of the time capsule. But, I'm willing to blame my lack of understanding.