> ;-) Are you *trying* to make things harder and more complex than they need to be? Perhaps the most helpful thing would be less theorizing and more doing.< I do have a tendency to do that; to over-analyse things and make them more complicated than they need be. And for the record, I was never intending to drink half a glass or water and impregnate the other half... I do realize that there would be no point to that, I just thought that posing the question might have helped to clear up a theoretical issue that has been on my mind lately. But you are absolutely right, Rawn. More *doing* is required on my part at this stage. I just keep wondering why it seems to be so diffcult to achieve. Thanks for your reply :-) Martin