Help me make my windows translucent

[pizmar]

So, when I try to enable translucent windows in the Control Center, and I boot up, I get this message:

Composite extension not found
You must use XOrg ≥ 6.8 for translucency and shadows to work.
Additionally, you need to add a new section to your X config file:
Section "Extensions"
Option "Composite" "Enable"
EndSection

I know how to add the part to my X config file. But I somehow don't know how to update XOrg. Forgive me if this is a stupid question, but thank you for your answers.

[claydoh]

Re: Help me make my windows translucent

Assuming you have not done so, you can log off, then in the login screen, you will click the menu button at the lower left side, then choose "restart x server" and log back in

or, more quickly, you can hit ctrl-alt-backspace

Also, I am not positive, but some video drivers may not support this, particularly some ati cards. If you have an nvidia card, you will need to install the nvidia-glx package