hi guys,

i have used backtrack 3 and bactrack 4 beta

i have just download backtrack 4 pre final and when i go to load it i get:

[ Minimal BASH-like editing is supported. For the first word, TAB lists possible command completions. Anywhere else TAB list the possible completions of a device/filename ]
grub>

i thought this image is a live cd and should boot i have no idea why it is going into this or what to do

please help

thanks