Windows Mail on a computer that is running Windows Vista might stuck

Issue: Messages may be stuck in the Outbox when you use Windows Mail on a computer that is running Windows Vista.

Symptoms: On a computer that is running Windows Vista, some messages may be stuck in the Outbox when you use Windows Mail. You cannot send or delete these messages. Additionally, every time that you close Windows Mail, you are prompted that there are unsent messages in your Outbox.

Cause: This problem occurs when the stream entries for the messages are inaccessible before Windows Mail deletes the messages from the Outbox.
Resolution: To resolve this problem, apply the following update. After you apply the update, you can delete the messages that are stuck in the Outbox.

Note: Because the messages are permanently deleted, you have to resend the messages.
Windows Vista, 32-bit versions
Download the 941090 package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=09F002D9-A140-42A8-99F5-A86F2B7E39F1)
Windows Vista, 64-bit versions
Download the 941090 package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=09DABF39-1E37-46DD-91BC-BE5ABE3F39B7)

Note: Use this patch effectively on the calls, it would fix the issue in lesser time than before.Refer: http://support.microsoft.com/?kbid=941090

By. Nitin Swarup