Black Log on screen following blue screen of death

ASUS X5DC, Windows 7, 3 years old Blue screen appeared after watching sky sports online Booted up the next day and got lights, sound but no action..seen the ASUS screen, starting windows screen, NO log in screen. Have done the following - Removed battery and power and held power...

Source: http://www.techsupportforum.com/forums/f15/black-log-on-screen-following-blue-screen-of-death-684840.html