First install the linux display driver for your card e.g. radion/nvidia.in my case I am using Nvidia 9200 M GS Chipset.check the supported chipset models.


Please refer to this page for Nvidia chipset & to know which driver is for your chipset
http://www.nvidia.com/Download/index.aspx?lang=en-us

In my case of Nvidia 9 Series Mobile chipset I am using

wget http://us.download.nvidia.com/XFree86/Linux-x86/180.22/NVIDIA-Linux-x86-180.22-pkg1.run

for installing it,its neccessary that you logout from KDE X
root@ThUnDeRbOLt:~#install NVIDIA-Linux-x86-180.22-pkg1.run nvidia
root@ThUnDeRbOLt:~#./nvidia

it will autoconfigure options according to kernel.if all went well you will see success message else note the error messages as it may be because of installing wrong drivers for chipset or mismatch in kernel version.

next

root@ThUnDeRbOLt:~#apt-get install compiz compiz-fusion-plugins-extra compiz-fusion-plugins-unsupported simple-ccsm fusion-icon

For Emerald windows decorator download:
root@ThUnDeRbOLt:~#wget http://fr.archive.ubuntu.com/ubuntu/...untu2_i386.deb
root@ThUnDeRbOLt:~#wget http://fr.archive.ubuntu.com/ubuntu/...untu2_i386.deb
root@ThUnDeRbOLt:~#dpkg -i libemeraldengine0_0.7.2-0ubuntu2_i386.deb
root@ThUnDeRbOLt:~#dpkg -i emerald_0.7.2-0ubuntu2_i386.deb

Upgrade the Emerald themes using
root@ThUnDeRbOLt:~#svn ls https://svn.generation.no/emerald-themes
This will download and install the security key needed later to install these themes. When it asks, accept the certificate permanently.

More themes can be found here.Download and import in emerald theme manager

Invoke the compiz-fusion icon through backtrack menu->system->compiz fusion
right click on compiz fusion icon and choose reload window manager

some of effects you would like to play with
Cube
For cube its neccessary to have minimum 4 desktop.so first we set it
go to backtrack menu->system->settings->desktop->multiple desktops
set here 4 desktop at least
now right click on the compiz fusion icon and choose setting manager
choose genral options
select desktop size tab
move slider Horizontal Virtual Size to 4(Number for desktop you want to see)
press back to go back
now from effect choose desktop cube & Rotate cube
configure zoom setting in rotate cube->genral tab set zoom to 0.1827(play with this setting)
now when you can use this effect by holding ctrl+alt & left mouse button or by simply pressing middle mouse button in the center of desktop.

Wobbly windows
click on this and enable it and goto genral tab & set friction to 2.1926(play with this setting)

enable 3D Windows
enable Animations

If you want cube reflection & deformation then select it as it will present cube in deform one.

cube atlantis will fill fishes etc in the depth of cube.the topmost part.see them playing.
goto cube atlantis water/ground tab & clear the checkbox render water wireframe
Transparency

Transparency
goto desktop cube->transparent cube tab and adjust the "opacity during rotation" slider to 85.0000(set according to your wish)
select skydome & cube caps(upper cube caps)for desktop
goto desktop cube->appearance tab select image file
goto desktop cube->appearance tab checkbox select skydome option & choose image
now you have seen a lot of tweaks.have a beautiful Back|Track 4 ahead.some of shots from my B|T4 laptop.

Water effect on backtrack 4 beta



Fire effect on Back|Track 4 Beta



Some Color Fires effect on BT4



Blur effect on BT4 Beta



Cube Relection & deformation effect in BackTrack 4 Beta



Rotating 3D Cube in Back|Track 4 Beta



3D Cube with Transparent cube atlantis(fishes inside cube)



Expo Effect of multiple desktops in BT 4



cube effect after setting cube caps & skydome

For Enabling emerald theme manager
Right click on fusion icon
select window decorator as emerald
select window manager as compiz
choose the themes from Emerald Theme Manager
you should have pretty desktop now in front of you.


6 desktop in rotating cube along with Emerald theme

That is all tweaks.if you find any errors or suggestions.please do let me know.