So I had all my photos on a external USB. I was running out of space, so I opted for Western Digital My Book Live Network Hard Drive when I decided to go bigger. I have sort of regretted that decision for many reasons, but one of the issues I am having is in Aperture. I used the "Relocate Masters" command in Aperture to move all my photos over to the network storage. This, BTW did not work as hot as I would have liked (messed up by folder structure), but that is not the issue I have. Since I did this, every time I open Aperture, it cannot find the reference files. I have to use the "Locate Referenced Files" command in order for Aperture to link the files so I can edit them. The volume is available in Finder. I can access the photos from there no problem. When I open the "Locate Referenced Files" window, on the top part, left column where it lists the volumes, the volume the photos are on says "Offline", but below, where you can choose the location of the files, the volume is listed just fine. I can proceed to choose the location of the photos and Aperture works fine again. If I import files and have Aperture put the photos on the NAS, it has no problem. It's when I exit and open it again does it seem to loose the connection. Anyone have any ideas what is going on? Thanks.