Cannot play Games

[Han <bali@mango.zw>]

Hi

I have just install the following and they all do not work is there
something i need to do

                        Vdrift
                        Balazar
                        Lincity
                        Trigger

The above games do not even attempt to start                     

My system:    Pentium-4 2.8Ghz
                      S3 Savage 4 32Mb graphics card
                      512MB DDR-RAM at 333MHz
                     

I also want to know is there any way to configure X-windows so that it
uses two Graphics Cards due to the fact that i tend to switch bettween
the two the other being a Geforce Titanium that i use to play games on
windows (store the dirver information for both the cards and automatical
chose the driver depending on which card am using