Recently, the operating system of my laptop has been upgraded to windows 8. And the OS is running efficiently. While there is only one exception that Outlook 2007 seems to work abnormally. To be specific, when I wanna to send mails to my friend too long apart. After I finished the writing and then clicked send, the strange phenomenon came up. The finished mail would not be send to the intended recipient, it was saved to the outbox instead. I do not know what's the matter.