I recently purchased a 27 inch iMac and a external LaCie drive. I store my raw files on the external drive. The problem is that when I try to import photos, the external drive is not an option. If I try to import the same photos in LR5, it works perfectly. The external drive shows up as an icon on my desktop - and when I click on it, my pix files (from previous imports) are there. Any thoughts or suggestions? Thanks. Wm.