First, browse to the NVIDIA Control Panel > Stereoscopic 3D > Set up stereoscopic 3D control panel and press the button “Set Keyboard Shortcuts”. On that page, press the down arrow to Show advanced in-game settings and click the checkbox “Enable advanced in-game settings” and select your hotkeys. Alternatively, you can use the 3D Vision USB IR Emitter to adjust convergence by holding down the On/Off button and then adjusting the depth wheel on the back of the emitter.
NOTE: Make sure the hotkeys you have selected do not conflict with any in-game controls.
Convergence adjustment is available for most games that work with 3D Vision. However some games do not allow for convergence adjustment because the developer had specific artistic elements in mind for 3D. The games that do not support convergence adjustment are: