Very interesting. With all of this talk of how the stones melt, I must ask you if yours have been left in the freezer or if you left them out like Spock and they are now just like hard pieces of coal. Oh and now that you clarified the color I can say that this monitor if right on. Good thing because that is my husband's business here too and I was gonna get real CRANKY if he stuck me with a crappy monitor! I gotta complain about something!!