I was looking for a file from a few months back to check a figure, and couldn't find it in the Time Machine backup for that date. The folder in question is stored on my Mobileme iDisk, and I have 'iDisk sync' enabled, so I have an iDisk image on my desktop. I also access the iDisk from my laptop so it makes accessing work files from different machines a breeze. Does Time Machine not backup the sync'd iDisk copy? I thought it did, and there was me for an entire year happy in the (supposed) knowledge that I had a triple-redundant backup of the work folders. Can anyone explain definitely what the deal is here?