You might have already tried this, but..
Go into Safe Mode (make sure you have at least the AGP VxD setup program on your computer and your Rage Fury Pro's drivers).. Run the AGP VxD program and choose to uninstall the driver. Then, delete the Rage Fury Pro's drivers. Reset and go back into Safe Mode. Run the AGP VxD program and install the drivers, then reset. Now, go back into Safe Mode once again and load the Rage Fury Pro's drivers.
I'm not sure if this'll work, but this is exactly what I had to do with my Rage Fury, GeForce2 MX, and my current Radeon.. Hope this helps.