Irrlicht Engine

Hello everybody. can explain why my application with the program separate XEffects normally works on nvidia 9500 but an error on the radeon x1300? be like that to get rid of?

hi all sorry for my english :) I wanted to know. how can illuminate the scene using the effects. I need a light source and that would have him shadows. but if I add in the example of a rotating source shadows are but when I add just a source with the position of a scene is dark and there are no shad...