No overlapping uvs, and I'm projecting from a highpoly to a lowpoly, using a projection cage which I've sorted out by hand. After applying my normal map, it seems that everything is strangely aliased and there's small specks everywhere.
do you have overlapping uv´s? if so offset all other parts with an value of +/- 1 or if you project from the same model than give the one with the projection modifier a smal push modiefier first