I am trying to make it run in 3dfx mode but it just doesn't want to. Have you had any problems like this with it. I remeber changing something in the shortcut last time with my banshee card. I am trying to make it run on voodoo 5 5500 card

 

I think you may need to re-install. I had a similar thing happen a couple of years ago when switching video cards on a machine with EA stuff. I don't believe all of the SW bits are loaded for every video configuration and the SW can't detect (probably not configured) the changed card.