well after playing with the natural vision shader and not knowing why it wasnt working i decided i would do a little searching for a neat program that would tell me if my crappy geforce 3 could handle it..
after a good 5 mins of google searching i ran across this free program called
opengl extensions viewer...
this excellent program will a do a series of opengl tests to see if your card can handle opengl 2.0 if it passes tests 6 and 7 you will then know your able to use the cool shaders on this forum..
i should mention you need to have the latest directx and latest vid card drivers aswelll...
this will save us all a lot of time...
well enough with my useless banter get this excellent prgram here..
http://www.realtech-vr.com/glview/
this post is soley aimed at those with trouble getting those shaders working..
if you find this post useful make it a sticky or something..