Can't edit photo imported from iphone 4S
After importing my photos to my PC (Windows 7) from my iPhone, I'm unable to edit them (for example, rotate, crop). I get the following error "this photo can't be saved because of a problem with the photo's file properties"
I check the properties, but they seem fine - all the right permissions, not read-only etc.
Occasionally, I will be able to edit a photo. Say 1 out of 10 of those imported. I can see no differences between these files.
I've also tried using different photo editors/viewers with no luck.
Any ideas?
Thanks!
iPhone 4S, iOS 5