Backtrack 5 - startx Gnome problem solved

This topic has been brought up many times. One of the many threads about it is this one: Black Screen afnstter Hard Disk Install and "startx"
there are many solution

The fix that works for me permanently is:
 Edit your grub file with:

 After installation of backtrack the screen go blank when startx command is    pressed so instead of typing startx type below code

Code:

     gedit /etc/default/grub

    Find this line in that file
    Code:

     GRUB_CMDLINE_LINUX_DEFAULT="text splash nomodeset=1 vga=791"



    change that line to
    Code:

     GRUB_CMDLINE_LINUX_DEFAULT="quiet splash i915.modeset=1 vga=791" 



    Save and close this file.
 dont forget  to update grub after changes type below command
    Code:

     update-grub