I have five of these windows on a porch we're re-doing. The wife wants to keep them. The caulk has turned to stone. Does anyone have a trick to removing this stuff? Tried chipping it out, not going well at all. Tried a heat gun and it helped a bit but I'm afraid of what the heat will do to the glass. The windows are about 5' tall and 4' wide. [img]/forums/images/icons/confused.gif[/img]