Ambient occlussion help

Does anyone know how to remove artifacts from a ambient occlusion bake, from a high polygon to a low polygon? I just keep getting faint lines where the low polygon and high polygon model meet

If someone knows how to remove them, it would be a great help.

http://imgur.com/roxN4b3

I baked it on error of 0.25 and a correction of 1, is there a way of removing the artifacts?