ENDED: 27" LCD screen for a mid 2010 iMac

[Grateful11]

mattkime wrote:
Sorry, I'm going to ask silly questions - have you taken off the glass and tried wiping off the gray smudges?

Off the glass or the LCD panel? The glass has been cleaned several times, both sides, with a micro fiber cloth. I don't think I tried to clean the panel as I'd rather not touch it but at this point it might be worth a try. Looking at it though you can't see anything on it with the iMac turned off.