blacksheep123 :
you need to install the graphic drivers
Thanks for coming back so quickly.
I thought I'd already installed the drivers, but when I looked on Programs and Features, sure enough it wasn't there. I installed it again (and took the Nvidia drivers off) but it came up with a message on reboot to say the drivers hadn't loaded. What I did notice when I reinstalled them was a reference to Windows 7/8/8.1 but not to Vista which I'm currently running. In the manual it lists Vista along with Windows 7/8/8.1 and it lists Vista on the box under Minimum Requirements.
Is this one to refer back to Asus support?
Kind regards,