I've been using iOS for awhile, but recently bought a mini and still learning OSX. I'm trying to upload a pic to a forum using an image uploader. I found the pic in my files but it is greyed out and I'm unable to select it. I've done this before using a MB, so I'm thinking there is a setting that I am missing. I've searched through Safari and iPhoto but I can't find the right one. Any ideas what I'm overlooking? Thank you p.s. I'm running Mountain Lion.