Here are the recent answer to this question.
By hawthorndarkmoon 03/14/2007
What worked for me was a weak solution of Simple Green and wiping it off with a microfiber cloth. You can buy the Simple Green in the automotive section of Target or Walmart. If that doesn't do it, try a stronger solution and let it sit a bit. Make sure you try it someplace where it doesn't show though, just in case.
Add your voice to the conversation. Click here to answer this question.