Thanks ckerins, I know what you're talking about now...see, I'm used to very structured ways of learning and approaching things...its my mathematical side, and am a bit uneasy about an evolvable purpose...i'm so used to setting a purpose and sticking to it, i guess i just have to break away from my old habit. Well, thanks for giving me a direction to travel in, and Dana, thanks for letting me know...I saw the response earlier