Weird that you had to do that. What hardware, just out of curiosity. I have ran mine on Nvidia and ATI and no problems.

If it needs to be added to ensure it on some card, I'd like to know what one(s). Thanks.

This is what I use......
Code:
 
        pixelShader=
	asm
	{
	ps.1.4
										
	texld r0,t0			
	texld r1,t1			
	texld r2,t2
	texld r3,t3
	texld r4,t4
									
	lrp r0.rgb,r3.a,r1,r0 
	lrp r0.rgb,r3.g,r4,r0 							
	lrp r0.rgb,r3.b,r2,r0
			
	mul r0.rgb,r0,v0						
					
	};


http://steempipe.blogspot.com