MK99, i know where is the problem. I forgot to add refresh command of device lock to auto- background changer i will repackage it later...

Ksanto, try R&D mode and restore this tweak, if it not help, restore this files:
/share/themes/base/meegotouch/libmeegotouchhome/style/libmeegotouchhome-default.css
/usr/share/themes/base/meegotouch/meegotouchhome/style/meegotouchhome.css

Lorenzo, tell me what the name of process of power menu. It should be in /etc/init/apps/