I'm massively new at this stuff, so please forgive me. But I've just built a new PC. I've downloaded a USB boot installer for Ubuntu 12.04.
When I power on the PC with the stick in, it all seems to start off well. It gives me the option to install Ubuntu which I choose.
However, it starts to work then just hangs on a black screen. If it leave it even longer, it will say something about the system needing to run in low graphics mode.
I have no CD drive on my build so need to get an OS on there via USB.