You sent me a PM....??
Just kidding.....Had problems learning this until I found out that if you are sending it straight from the message center, you need to first find the person in the "look up members " find a member list....mark it...scroll down the page, I think it will tell you to "save" or what ever....then back in the message page you got to click "add" and it will add it ....then write the message ...then submit....
Hope this helps....play with it .....I explained it the best I could at 11:34pm after a couple glasses of wine at the PA GTG.....
Maybe some one else will do a better job....
Hope to hear from you soon....