OK here's my issue so i start the pc and it boots into the black screen and loads the 1 line ISOLINUX fine then it sits at "boot" i hit enter and it loads into the red backtrack5 screen with a few options and a 30second countdown but i have no control at all then after 3 seconds my pc shuts off altogether. Its the same thing with the BR5r1-gnome-64 and 32 iso files