>I have Outlook 2003. I started to use it today and one item in my Inbox says this in the Reading pane:
>
>The item cannot be displayed in the Reading pane. The item has not been received from the server.
>
>What does it mean and how to clear and read that item?

From Microsoft support:

In the upgrade of Outlook 2003, the option to block attachment larger than 10 kb is enabled. So, go in Tools, Options, Mail Setup, Send/Receive and disable that item.