Fresh Windows vista installation hangs indefinitly

This is a brand new computer and so does not have any OS installed currently, when i try install windows vista, it will stop randomly either while the black and white "windows is loading files" screen is up, or the green windows loading bar imediatly after, or this green windows bar will disapear and then a blank screen will appear. i have tried leaving it for several hours on each part mentioned above but nothign changes.
the hardware is:
-Asus p5q3 delux Mobo
-Intel quad core cpe
-4gb DDR3 Ram (2x 2gb sticks)
-XFX Geforce 9800 GTX 512MB
-Seagate 320GB HDD

Hi,

Have you tried in safe mode ? Put Windows vista installation cd into cd drive and try repair.

might i ask how i run the installation in safe mode? probably a nooby question