I recently had some photos off iphoto printed at a camera shop. The majority of them came back blurry. On asking the shop owner, he said that some of the photos had higher resolutions and some had lower. I'm not sure how I got both in iphoto as I have never changed any photos. Last week I dowloaded my iphoto library from my emac to my new mac book (yay). I used a back up disc. When I opened iphoto on my mac book I had double the amount of photos and some photos were even in triplicate. I am now totally confused as to which photos I shoulod keep and how this happened. Is is better to print a high or low resolution at a photo shop, and how do I know its resolution? Hope this makes sense.