You wrote (in your message from Mon 2)
 > Hello,
 > 
 > I recently try out the GLX program specified in the OpenGL Book.  However
 > I am not able to run the test as I don't know how to set the X server to
 > true. My system is i386 (1.3b) and the video display card is Mach64 
 > with 2M Ram.  I had tried to edit the XF86Config with no success.  Can 
 > anyone show me the steps to setup the X Server to use true color ?
   Thanks.

Add the line:

	DefaultColorDepth 16

In the "Screen" section corresponding to the server you're running in
/etc/XF86Config. 

 > 
 > Clarence CHAN
 > 
 > P.S. If this is an already answered question, please tell me where can I
 > get the answer.

It's documented in the XF86Config(5) man page.

					Matthieu