Not sure if anyone else is having the same problem but my button where it says I have either a "new pm" or "no new pm" is constantly telling me I have "new pms" and I don't
Is your inbox full??
If your inbox is full any new PMs will be on hold until you clear free space by deleting some old messages. Then you'll have to "release" the new PM. This option will be at the top of your messages in your inbox.
Down the bottom of your inbox James. Select messages first by ticking the boxes next to the messages you wish to delet then go to the box at the bottom, open it up and select "delete".
(see pictures)