[Haskell-beginners] to modify the eagerness level of haskell compiler..

Hi everybody, May be I am doing it wrong being a beginner.. but here is what I want.. I am trying to debug a stack overflow problem by printing a lot using "trace" commands. But it does not seem to seem to be printing in the expected order. so it has been misleading quiet a bit. Can somebody guide me as to how to modify the laziness of the program or some pointers on how to debug the stack overflow errors. Thanks in advance. Sunil.