Combine NPC problem

My combine soldiers seem to spawn with a color tint on them. The Elite’s are tinted red and the prison guards are tinted yellow. I have no idea what’s wrong. If somebody could help me fix this, that’d be great.

Thanks

This should help.
http://www.garrysmod.org/img/?t=dll&id=42569

Your graphics card CANNOT handle the shaders used for the combine eyes, i reccomend you get a better graphics card

thanks alot man it did help