Ok, so I broke my laptop and my husband was super happy to surprise me with a MacBook Pro. I've always used PC and this new computer is driving me crazy!!! Nothing works like I'm used too. My usual routine is to finish a layout, save a full size copy and then save one that's resized to 600x600 72 dpi. Then I can upload it to FB and galleries. And it's just not working! My 600x600 copy is smaller than I'm used too (although maybe that's the smaller laptop screen?) and I can save it as a jpg, a tiff, or a png and it doesn't matter, I can't upload to FB. They're all grayed out like they're unsupported file types. Does anyone know what I'm doing wrong?