There have been a couple of occaisions now, where members are trying to PM other members and find that their email is not being sent. This problem is the result of the recipient's PM Box being full and the email bounces back. To delete PM emails and clean up your Box, click on the PM and the message will appear, you will then see a small box with an X on it click on this and you will be able to delete the message. The forum message system is a bit confusing as there is no obvious delete button on the page which lists all of your PM's. If a smarter more technical member has a better solution/method for example deleting a whole bunch of PMs at one time please post it here.