I installed on my laptop a Dell Latitude E6420 the iATKOS 10.8.1 ML. The installation used the flags (GraphicsEnable = Yes, -v and -x), managed to install the system. At the end of the installation the laptop failed to restart. I had to turn off and turn on laptop button. Everything worked except the Wifi, but what worries me is that it does not restart and will not shut down. Can you help me with this problem.