Okay, I have a major problem with TimeMachine at the moment. It worked perfectly until yesterday. Two days ago I had over 150Gb free on my external HDD which is dedicated to TimeMachine as well as for Aperture back-ups, yesterday I got a message from TimeMachine saying that the drive was full (only 4Gb left). When I check in Finder it says that every single folder from every hourly update is around 150-160Gb. The same thing comes up when I checked the drive in the app WhatSize, which actually list the main TimeMachine back-up folder as being 5.46TB(!) and the HDD itself is a 500Gb, with around 130Gb used by Aperture. So the total file size TimeMachine is suppose to back-up is around 160Gb, then Aperture takes 130Gb. The drive is a 500Gb = 465 actual Gb. This should mean that the drive should have 175Gb free, give or take a few, but nowhere near being full. I was under the impression that TimeMachine only backed up the actually modified files every hour, not every single one. So how can it be that it's eating up 100+ Gb duing one day? As of right now it has deleted all old back-ups to make place for the new ones, so I only have back-ups from yesterday and today left... Any ideas on what the problem might be and what to do about it?