While trying to log on to gnome -flashback (no effects) lightdm login does not present the little icon with my user_name. I have to click 'Lightdm Manager' to bring up the icon.
Also .. the screen gnome background screen that is presented in ubiquity and then chosen will flicker once real fast and then go to a default background not as originally depicted in ubiquity.
Current default background for Edubuntu Gnome Flashback-no effects:
ventrical@ventrical-MS-7798:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu Trusty Tahr (development branch)