Uhm did you wrote that?

Code:

---

material mat_grain
{
	ambient_blue  = 255;
	ambient_green = 255;
	ambient_red   = 255;

	diffuse_red   = 255;
	diffuse_green = 255;
	diffuse_blue  = 255;

	specular_blue  = 255;
	specular_green = 255;
	specular_red   = 255;

	emissive_blue  = 255;
	emissive_green = 255;
	emissive_red   = 255;

	albedo = 200;
	power = 100;
	
	event = mat_effUVinit;
	effect = "grain.fx";
}

---

and the effect into the fx file?

The UV effect material works here fine on my machine..