In doing a manual backup to my Maxtor NAS tonight using Maxtor's utility app, something within the application filled my Mac Mini internal HD. When I look at it from the root level, Finder is showing that there are 6 items, with 5.95 GB available (75GB drive). Yet when I add the total GB for the 6 items it only comes to 30GB. How do I find the other 40 that are missing? There is no partition BTW.