Help, help, help, help! I'm ready to throw in the tea-towel! I've got a wonderful smelling and behaving wild yeast culture going and I've followed the procedures in Chad Robertson's Tartine Bread to what I think is a perfect "T". The problem is that I'm getting almost no rise from the dough once it goes into the oven. I do the autolyse for 45 minutes, I get a magnificent smooth and silky fermentation, but in the end, I get dense, good-tasting, but too dense loaves! Any suggestions as to what I can try and/or am doing wrong?