I've just started using LR3 (maybe I should have waited and watched the videos), and am having a problem locating the missing photos. I know where the photos are. When I go to locate the photo - the first thing I see is a little red circle with a minus sign in on the folder icon next to hard drive name (these are on an external drive). I can go to the photo in question, select it and nothing happens. I tried moving the photos to the internal drive and tried to locate the photos again - and nothing happened. I never had this problem in LR2. I did recently upgrade form a Mac Book with leopard to a imac with SL.
any suggestions for a cure.
thanks
Steve