I have been experiencing the bug mentioned here. People have reported downgrading their driver to 290.10 prevented the issue for them so I tried this but I am not sure whether I have installed the driver right as I am still experiencing the problem.
I went here and downloaded the .deb, then to install it I ran:
sudo dpkg -i nvidia-current_290.10-0ubuntu2_i386.deb
There were no error messages from dpkg.
I checked in the Synaptic Package Manager that the install version was 290.10-0ubuntu2 which it is so I locked it to this version.
The reason I question whether I have installed it correctly is because in the nvidia-settings it still shows the driver version as 295.49?