Jim Coleman: How to stop that meringue from weeping

Q: For Valentine's Day, I am making my boyfriend's favorite dessert, lemon meringue pie. I have his family's recipe, and the last time I made it, I followed the recipe exactly. It looked great and tasted great, but there was one problem: The golden meringue pulled away from the edges of the pan, and underneath the meringue was very watery. Can you please send me another recipe and tell me how to prevent this mistake? Is there a way to fix the recipe I have?