I have some artefacts in my normal map. Is that a problem with my texture size? I played with the bias and distance settin...

posted to: Baking a Normal Map
I have some artefacts in my normal map. Is that a problem with my texture size? I played with the bias and distance settings but without any results. The artefacts appears only on the top of my model where I have a flat surface (large polygons). Don't know if that is a problem? Images: http://imgur.com/F9fxSCW http://imgur.com/hZQ1ihd