Hello. I bought recently a Nokia Lumia 920 and I have a minor but annoying problem. Whenever I try to set as lockscreen wallpaper on of the stock wallpapers (particulary the ones that are next after the simple color ones) I can't seem to do that. I doesn't give me the apply menu , it automatically goes back to lockscreen settings. This is my third replacement from the store. Am I so unlucky that I keep get a bad one or is it a common amber problem because on all of them the probelm appeared after I updated to amber. I tried soft and hard reset and nothing.