Select the live session from the GRUB menu and press "e" then add this to the end of the line that starts with "linux":
Now press <Ctrl>+x (at the same time) to boot the modified entry.
If the live session works fine, you can install #! and make the above change permanent.
When I selecet Live Session nothing happens when I press e. But there's a not below that says Press <Tab> to edit options. I tried it but there's no line that starts with "linux"
Anyway, I found a solution through google image search, somebody had the same problem and fixed it with selecting the Install option and pressing <Tab> the editing the value of vga to "vga=769"
I have a different problem now, I have went past this problem and got stuck on failed step: Installing the system.