Inbox full?
 

How can my inbox be full? There are no messages,am I doing something wrong?

See Faq's in left margin for instructions.

OSO

I give up,I'm too computer stupid, anybody needs me just email the old way

You will need to periodically delete old messages, as there is a limit set (25) to the number of private messages you can have in your folders. If you exceed the number of messages specified by the administrator, you will not be able to send or receive new messages until you delete some old messages. You can delete your messages by choosing User Options in the left margin, then Edit Private Messages, and choose from the drop down menu on the left "Show Messages from" the beginning. Check the boxes to the right of the messages and then click on the delete button.

Whenever you read a message, you will have the option to reply to the message, or forward that message to another member of the board. You may also have the ability to forward that message to multiple members of your buddy list.

I believe the default view is set for 10 days. You may try to set it for "the beginning" and see if there are any real old ones there then delete them