Share your experience!
Cannot view any of my pictures when I go into the gallery, it opens the app fine, but instead of seeing my pictures there a grey boxes where the pictures should be.
It's frustrating, as I can still take the photos, but as soon as I attempt to view them, I cannot see them, if I click on the grey boxes, in the hope it will load a picture up, it just comes up with a loading sign, until I get bored of waiting and exit the application
Would really appreciate any kind of explanation/tips for what to do!
Thanks 
Is it only with the gallery, or is it also with apps like Sketch or Pixlr Express?
Have you tried clearing the cache of the Gallery app?
Do you store the photos on internal memory, or micro SD card?
Try settings-apps-all-media storage,force stop and clear data.If you have the thumbnail issue,check this topic:
http://talk.sonymobile.com/t5/Album/Duplicate-images-in-Album-application/m-p/716771#U716771
Is your microSD card working fine? I have seen you accidentally ticked a solution,do you want it undone?
Is the same occuring through Album app?Did you restart your device after clearing data for media storage?