Preheat oven to 350 F.  Spray a bundt pan with non stick spray.

Combine flours, baking powder, salt and nutmeg in a bowl.

Using an electric mixer, beat butter and cream cheese until soft and creamy.  Add sugar and beat until thoroughly combined.

Add eggs one at a time, mixing well after each addition.  Add vanilla and mix well.

Alternately, add orange juice and flour mix until you have a smooth batter.

Pour into prepared cake pan and bake for 1 hour, until a toothpick inserted comes out clean.