Dear PaulMaurice, First thanks reading my comments and calling me divlocks (if you read my name properly its divdude but it really doesnt matter because you are a great intellectual and you have right to call people whatever you like). As I pointed above I am tired of debating on this subject now. I just wanted to post this to say PaulMaurice, "Please get out of the lab once in a while and learn a bit how to talk decently to people". Thats it , rest is cool GD luck with your research.