How to turn VecticalSync off ?

[nstlegend]

I want to turn VecticalSync off, but the setting window hasn't appeared since the first play.
How can I turn VSync off? Or how can I bring the setting window back?
Please, help me!

[Captain Mazda]

At least 3 ways pop into my mind:

1. Go into your Start Menu -> Programs -> Eidos -> Tomb Raider: Anniversary and select the Setup. Uncheck Vsync and click ok.

2. Go into your actual installation folder for Anniversary and find Setup.exe there.

3. Use third-party software such as nHancer to override the game's display options and disable Vsync.

[nstlegend]

Thank you so much.
I think I'd better not activate vSync again.