Moire Effect when baking

Support Materials and Textures
1

I have baked this cushion several times before and it was fine, but now I get this effect on the top and sides:

Screen shot 2012-01-09 at 1.43.59 PM.png860×474 304 KB

any clue? I have tried baking a larger image. Rearranged the UVs.

2

I fixed it – I just had Generated instead of UV selected!