I have LR 5. I updated in March from LR3. I just purchased a second external hard drive to start using for my images after filling up my first. I just tried to go back to external hard drive #1 to look at images from last month, and I can't pull them in to lightroom for some reason. When using external hard drive #1 after updating to lr5, I always had to go to Edit >Open Recent to open a previous catalog to access my images. I think this has something to do with it, because there aren't any other catalog options in LR5 when I switch from external hard drive #2 back to external hard drive #1. I need those images pronto to finish projects!!! Please help and thank you!