"Mold Away" from MDR (Marine Development and Research, 2116 Merrick Ave, Merrick, N.Y. 11566.) I find this product amazing, i just spray it on a rag and dab or wipe it on the spots, then watch `em disappear.
I`ve sprayed it on serious mold in a home bathroom on the "popcorn" sprayed cielings, same thing, watch the stains go away. I`ve had much better luck than w/bleach (although they smell the same.)