Kubuntu run (boot) only in recovery mode

[Guest]

Hi all!

I just bought new lapotop its

ASUS N55SF SX398VS8
Intel Core i5 2,4 GHz
8 GB DDR3
NVIDIA GeForce GT 555M

I tried to install kubuntu and i managed to do it only with additional option

acpi=off

But event after installation i just can't boot kubuntu normally i have black screen and nothing happen (it looks like screen just trun off). When I boot in recovery mode it is working...
Can someone help with it i can't work on windows (:lol.

[Guest]

When i try to do full update it stuck in about 50%
When I go to hardware proprietary drivers i have nothing there.

UPDATE:

Ok so now I manage to run kubuntu normally by

sudo apt-get install nvidia-current

But when i try to make

sudo nvidia-xconfig

after reboot it stops on terminal.

I have only one additional nvidia driver in

System > Additional Drivers

called

NVIDIA accelerated graphics driver (current version)

marked with green dot as used. But when I go to

System > NVIDIA X Server Settings

I get message

You dont appear to be using NVIDIA X driver. Please edit your X configuration file (run nvidia-xconfig as root) and restart x server

but it just doesn't work...