Tearing effects ! Vsync or triple buffering not activated ?

Hello,
I have the last Macbook Pro, 15", 2.4 Ghz Penryn, Nvidia Geforce 8600M GT with 256 of VRAM.
Leopard 10.5.2 and Leopard Graphic update 1.0 are installed.
I have the folowing problem : on all my games (for mac),when my FPS are higher than 60 FPS (refresh rate of my display), I'v got bad tearing effects !
I will take the example of UT2004, even with maximum resolution and graphic options, on little maps I can reach 110 FPS, that means I'm loosing 50 FPS because my display can only show 60 FPS. Over game like Colin mcrae rally, wacraft 3, Prey are also affected.
Usually, if I'm not wrong, the option Vsync (Vertical Synchronisation) stop this tearing effects, it force the graphic card no to be faster than the screen refresh rate. But I activate the "Vsync" option on all my games, it's has NO effets ! FPS are the same ! Tearing effects remane.
I'v heard that in MacOS X there is something called "triple buffering" that do the same job than vsync. But it should be activate by default !
So there is my questions : have you the same problem ? is there a way to activate (like on windows graphic card display tool) the Vsync for all applications in Leopard ? To check if "triple buffering is not disabled ?
If you have an idea, thank you !
Shifty
P.S. Sry for my english, I hope I not posted on the bad section

podosinovik wrote:Section "Extensions"
Option "Composite" "Disable"
EndSection
I didn't see improvments
I have a lxde + openbox system and let me tell this issue is too annoying!!!
I come from gnome + compiz and I hadn't any problems with my nvidia 8800gts.
I also started a topic on March 2010 where I observed with Compiz this problem doesn't exist.
I tried xcompmgr too but without results.

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Author:   [email protected]
Date:     2009-06-14 15:57:29 -0700 (Sun, 14 Jun 2009)
Log Message:
Update ASDoc on the new backgroundFrameRate property to WindowedApplication, to by default reduce the CPU usage in cases where an app is not 'active'.
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http://oracledisect.blogspot.com
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