I have a 4s on 5.0.1 jailbroken. For some reason I can only view pictures I receive via text/iMessage if I save them then go to the photo app. I see the small preview in the text but when I click on it to view it larger it's a black screen with the option at the bottom to save/copy. Once I save then I can see it in photo app. Any ideas what could cause this or how to fix it?