Now this thread seems to be active again, let me drop a new problem.
I'm running Windows 8.1 64-bit and have tried every solution under the sun to try and get Redguard running in 3dfx mode. I've started a topic at Vogons a while ago, but haven't come far: http://www.vogons.org/viewtopic.php?f=33&t=38006
Most of the topic is about running the game in a virtual Windows 98, but apparently that's a no-go. In Windows 8 I've tried nGlide, dgVoodoo and Glidos, and for some strange reason, only Glidos seems to work. Using the other two, the game starts up until the blinking underscore, then quits again. I've recently confirmed that Glide isn't even initialised when starting the game, so the wrapper is not the source of the problem, but rather some setting or configuration, or the OS.
Any ideas would be greatly appreciated!