Alright, I got my friends Hex to fix and I began removing the silicone on all four sides of the cracked pane of glass. I have two questions I have thought of so far. One, how do I break the pane out without hurting the others and does the replacement piece need to be tempered? And two, I was staring at the panel and thinking that I needed too press the glass out from the inside but the rim is holding it from the opposite direction. How do I put the replacement piece in? Squeeze it? O.K. this turned into like four questions but hear is one more. I cut the silicone away from the single panel around the top and bottom, can I just re silicone around the new piece or do I need to remove all the top and bottom and re silicone the whole top and bottom since I cut it? Some how I figure I want to leave the rest alone because it seems I would just be risking more leaks. Anyone have an opinion or four?