Hi for all who will read this.
I couldn't access my Personal Messages for ages. I think there was a large e-mail sent out and it blocked it up or something. I tried deleting the caches and cookies etc, tried logging in using a different browser (I normally use Firefox).
Then I was about to send a personal message to Gareth to ask if he could sort it for me. I clicked on his PM button under his picture. Along the left hand side you have a list of options. I tried clicking on my Inbox to no avail, still couldn't access them. Then I clicked on "prune messages" and it gave me the option to clear my messages. Which I did and now I can access my PMs. I have lost all my messages, but there was nothing in there really to keep anyway.
Just to let you know there is a solution.
Hope it helps.
Pauline