At first i´m from germany and my english is not so good ,sorry.

I have installed the BT2 Final like this description

x x x. o f f e n s i v e -s e c u r i t y . c o m / d o c u m e n t a t i o n / b a c k t r a c k - h d - i n s t a l l . p d f

That is no problem. But if i reboot the system after installation, the display is black and nothing works.
The only thing i can do is go into the bios.

Can somebody help me please.