Hello everyone. I've a question about a possible bug in Yosemite. With Yosemite, Apple has changed the appearance of login screen: now the login screen uses (at least if you have only one account: I don't know what happens with two or more accounts) the wallpaper you have chosen for you desktop as background image, in the fuzzy version. This happens if you turn on your Mac after shouting down it, if you restart your Mac, if you logout and the login again and happens (or should happen) also when you sleep your Mac and then wake up it (if you select the option for password request in "System Preferences/Security and Privacy"). But on my Mac, after exit form sleep mode this does not happen: when I wake up my Mac from sleep mode, the login screen uses the default Yosemite wallpaper (in the fuzzy version) as background image instead of the wallpaper I have chosen for my desktop. Does it happen only to me? Is it a bug or a precise choice by Apple? Thanks. P.S. I'm sorry for my bad english.