Before uploading files to Aperture the program asks whether you want to store the photos in Aperture's library or to another drive you specify. I always chose an external drive. If in the future I move a folder to another Drive, Aperture no longer can find the files already imported because the drive has been changed. How do I let Aperture know the new location so it can recognize the files in their new location. This has really been bugging me and I can't find the answer on Aperture's site. Please help out if you can.
Thanks,
Stephen

I think the best way to do it is File > Relocate Masters for Library. I haven't done it but I think it means that it can still see them. Someone else might be able to help a little more.