Circles on windshield

This is my third tacoma and it is the only one that has had this problem. It has circles on the windshield that can only be seen with a little fog or if the light hits it right. My guess is that they are from the tools used to mount the windshield at the factory when it was built. They are from suction cups. The problem is I have cleaned it alot and can't get them to go away. Any help to make this happen. Not sure if this needs to be in detailing. If so sorry.

 

http://www.tacomaworld.com/forum/2nd-gen-tacomas/259689-do-you-have-suction-cup-marks.html

Some say it goes away after a few washes.

 

Theres is acually a TSB I've seen on this

Calcium Carbonate (Bon Ami®) or a glass polish containing Cerium Oxide.

CLEANING PROCEDURE:
1. Moisten a clean cloth with water.
2. Wipe the glass surface leaving a very fine film of water on the glass.
3. Observe the location of the marks on the glass.
4. If the marks are on the inside of the glass surface, take precautions to cover any of the
interior components the cleanser could come in contact with.
5. Rinse the cloth with clean water.
6. Apply cleanser to the moist cloth.
7. Rub the surface of the glass with the cleanser in a circular pattern being sure to cover
the entire area that the mark involves.
8. Wash off any residual cleanser material with a moist cloth.
9. Dry the glass surface.
10. Check that the removal has been successful by rubbing a moistened, clean cloth back
over the cleaned surface and inspect for suction cup marks.
11. Repeat as necessary to remove all of the mark(s) from the glass surface(s).