We have a summer house and there was a problem in the winter with water sitting on our granite and not being wiped up. Now we have terrible looking stains on our granite and nothing seems to touch it ...
Thanks for the info Mike. I was unaware of vinegar not being good for the granite.
You can go to Ace Hardware, or Lowes, and get Rock Doctor's granite polish. They have a special formula that is good at getting out countertop stains.
You could also order it online at http://www.rockdoctor.net