So I am having an issue with my PM's. The issue is that I can't see any of my sent PM's at all. I can see all of my inbox, but my sent box says that it is completely empty. How do I rectify this?
You have to set it to save them. ^_^ The ones you've already sent are gone forever, I'm afraid, but you can change it to save them in the future.
Go to "Settings" on the top right of the main forum page.
On the left of the new page, go to "General settings"
In the "private messaging" section of that page, there is a section for "Sent Private Messages." Set that to " Save a copy of sent messages in my Sent Items folder by default"
Whenever you are sending a PM, look at the Advanced Options below the typing area. The box next to "Save a copy of this message in your Sent Items folder" needs to be checked before a copy will be saved.