The program initialises ok on Voodoo2 SLI using 3Dfx's 1.0.0.0508 ICD. However only the top of the field of view is visible in the bottom (!) fifth of the screen. The rest of the screen (the upper part) is blank apart from some occasional flickering text. Presumably a problem due to 3Dfx's dodgy ICD in this latest reference driver. There appears to be no way to disable SLI in the driver software for OpenGL (only for Glide and DirectX).