I run xp pro and Office xp using Microsoft Outlook as the default prog for e-mail. When I start a new e-mail and attempt to enter my Contacts address box via the "To" button, I am provided with the above message. On pressing the message "OK" button I am returned to the same message (after a period of 2 or 3 seconds). On clicking the "OK" button once more, I am finally allowed to select, via the drop down menue, my Contacts addresses. Prior to upgrading this never occurred!