Overclock VGA with RivaTuner

Try overclock your own VGA card with RivaTuner. Fo this example, i'll use my GeForce 8800gt for tweaking.
Here are the steps(sorry, no pictures):
-. First, open your RivaTuner app;
-. Next, click the triangle icon beside the driver settings, then click system settings/tweaks;
-. Then, give tick to 'Enable driver-level hardware overclocking'. If there's a warning box, just
choose 'Detect Now';
-. Next, choose performance-3D on the drop-down menu. The location is beside the previous
step(hope you understand);
-. Well, then, you got into the greatest step. Just move the slider in the Core Memory & Memory
Clock to the position you want.(WARNING: Don't be ambitious. Move the slide just by 5.
example from 600 to 605 or 610. If the GPU doesn't complain, then continue to raise the clock
by 5-10 repeatedly);
-. The step to increase the clocks called,"trial & error";
-. Next, after you done, click the floppy disk icon to save your setting. Give any name you like for
the save name;
-. Don't forget to create a profile with your VGA default settings. This'll really helping you when
somethings bad happened);
-. Finally, test your overclock setting in a benchmark like 3d Mark or see it in GPU-Z for the
prove.

REMEMBER: I'm not responsible for anything happens with your VGA card. I'm just explain
you the steps to overclock your own VGA card.OK? Well, thx for reading.