phileysmiley wrote:I'm confused though. If Windows loads perfectly, the boot menu and POST screens run fine and everything is normal with my software on the external monitor, how can it be a software problem? Doesn't it have to be a hardware problem?
It is quite clearly most likely to be hardware, but software errors can sometimes be VERY strange ; mainly, it's just good practice to ensure that it's not software prior to any invasive attempts at a hardware fix.
But yes it's true, a Live CD is perfectly adequate to test this