After doing a update to the nvidia kernel for the 4GB problem, the grub screen was using a graphical interface which was not allowing me to view the options on the grub screen. It was black / blank, so to alter it so that it uses a terminal (console) version instead of a graphical interface you have to alter the /etc/default/grub file
And just uncomment the GRUB_TERMINAL option, or alter it to say console as below.
# Uncomment to disable graphical terminal (grub-pc only) GRUB_TERMINAL=console
You will need to update the grub /boot/grub/grub.cfg file which is done via the
command, you will have to be root to do this, or sudo if you do not have a root access as such.
now the screen will be viewable in a console mode which is all that I needed anyway, I was not really that bothered about having a graphical image in the backdrop just to select a OS or kernel version.