A couple years back in my army days (long time ago). And about 2 years now, but really only seriously for about six months. And yeah I hear you about hanging around the board and reading posts. Thats what I been doing. So I guess I have no choice but to hang around, at least until some of these terms make sense to me. And yeah, I had to look up "endocrine". I feel pretty stupid when it comes to all this and believe me thats something that I am not used to. Well thanks for the replies, it's a start anyway. Later.