[ubuntu_studio] After Installing Nvidia Drivers screen freezes (shaking).

UBUNTUSTUDIO 16.04.
AMD Phoenix II , Nvidia GTx 560 , gigabyte bulldozer support motherboard , 8gb RAM. (5 year old hardware). 320Gb 5400rpm main drive , 500gb 7200RPM spare drive.
After updating from default driver Nouveau driver to Nvidia 361.42 driver.
I lost the splash screens from boot and shutdown.Boot time and shutdown time has increased.
It is not a issue at all.
My screen would freeze shaking with pixelated patches all over the screen. Each time I had no choice but will have to restart.
I saw a youtube video and I updated my xconfig file from nvidia xserver settings app.
Things tued to normal.
But recently this week , three times the same issue tued up.
I had to restart once , one time Ubuntustudio popped an error to report quickly after resuming from freeze and shake ,
the last time ubuntustudio logged me out just like that .. and problem seem to be fixed when I logged backin (no restart ).
I presume this retued since I had my machine on for about 1.5 days each time .
Is their any solution to this.?