Have an iphone 5s and/or on iOS 7 and your Photostream (“My Photo Stream”) has stoped synchronizing with your machine? Try rebooting your iphone. Sounds crazy but I have the latest patches on my iphone 5s but recently found that my Windows 7 had stopped sync’ing. Immediately I think that the service has bombed out or hung but actually it could be the iphone. I saw on some forum posts to try this and worked like a charm, almost immediately upon booting the pictures dropped on the PC. Sooo…start your troubleshooting by rebooting the iphone.
I love the fact that my pictures automatically ‘backup’ to my PC using the cloud. The Apple cloud only keeps 2000 pictures but with this services it copies all the pictures down as they’re saved. Easier than finding the cable and hooking in to the PC.