UPDATE 2

With live USB, BT5 R2 ISO GNOME 64bits

it Works!!!

UPDATE

dear eveeve2,
I've read the wiki ubuntu, tried the boot commands, nothing worked.


I've downloaded the BT5r1 ISO GNOME 64bit and made a USB live with unetbootin.

same problems...

Hello all,

Running BackTrack 5 from USB

I have a Dell XPS 15z:

2nd generation Intel® Core™ i7-2640M processor 2.80 GHz
NVIDIA® GeForce® GT 525M 2GB graphics with Optimus
8GB Shared Dual...