I am using a Windows 7 pc with icloud installed, new 4s (sprint). I have put several pictures in the "upload" folder designated by icloud, but they are not uploading to the cloud, or to my phone. I have tried switching photo stream off and on, doesn't help. When I originally set everything up it worked, but at some point, they have disappeared from the "cloud" and even though they are still in the appropiate folder, they are not showing up on my phone. Anyone else run into a similar problem or have suggestions?