First time here!  Hoping someone can help me! I have recently installed Aperture 2.1.1 on a new computer and I just downloaded a few hundred new photos to my Aperture library using the new computer. The photos successfully downloaded but the previews don’t seem to be fully loading.  I end up with very pixelated previews and the ‘loading wheel’ doesn’t move, but it also doesn’t go away. This is the first time this has happened.  I’ve tried playing around with my preview preferences but that didn’t seem to change anything. Can anyone help? Without the previews, the software is useless to me! Thanks in advance!