Just Joe ordered me to post this so here goes. Assuming you never used the PM option* Go to the top right of the page Click on the "inbox" next to your sign on name, It will read "you don't have any conversations" * You should see "Start a conversation" , click on that You can type in the persons sign on name when you see that prompt (after you type the first few letters it will drop down and you can click on it. Send your message.