Enable Stereoscopic 3D at the nVidia Control Panel...also press the 3D button (ASUS ROG Logo) on the Laptop make sure 3D is enabled...
Also note that it will only work on Stereoscopic 3D content...If its not a 3D content then it will not work...
-ASUS ROG G73SW-3DE-
-Intel Core i7-2630QM Mobile Quad Processor
-Intel HM65 Express Chipset +ICH10
-17.3" 1920x1080 120Hz Anti-Glare Matte Screen
-nVidia GeForce GTX 460m 1.5GB GDDR5 VRAM
-nVidia 3D Vision Active Shutter Glasses
-Creative EAX Advanced HD 5.0
-THX TruStudio
-8GB DDR3 1333MHz RAM (Max 32GB)
-2x500 Seagate Momentous XT Hybrid HDD
-Blu-Ray 4x Burner
-Logitech Performance MX Darkfield Laser Mice
-Microsoft Windows 7 Ultimate
-XBOX360, PS3, Wii