[TrudyM]

I have had bad luck with the steal wool maybe I am just a clutz.
What worked for me.

If it is really fine then toothpaste will work. If not get a polish from the auto detail department of a store like Home Depot, Shucks, or I think even Wallmart, it will say for glass.

I use an electric buffer like you use for a car with a good quality lambs wool pad. You will need to clean off to see how it is doing as you work. Keep checking as it can grind down pretty fast. When done clean off with a 50/50 solution of ammonia and water. You will want to wear gloves and do it in a ventilated area because the mix of the ammonia and the cleaner stinks. Rinse with plain water and dry with a soft terry cloth. If this doesn't do the trick you will have to have to take it to a glass place and they are not cheap.