User`s guide

ATI Advanced Settings Tab 29
How to Use Stereo Glasses with Your FireGL™ Card
The
Enable Quad Buffer Stereo option requires a stereographics
connection on your FireGL™ card. Enabling this feature while using
compatible stereo glasses and applicable software provides an immersive
3D-stereo display.
L
The Enable Quad Buffer Stereo option is only available for graphics
cards that come with a stereographics connection.