We don't know - provide more information, like your current Outlook version.

--�
Milly Staples [MVP - Outlook]

Post all replies to the group to keep the discussion intact. All
unsolicited mail sent to my personal account will be deleted without
reading.

After furious head scratching, JRP asked:

| How do you get Outlook to warn you about scheduling appointments that
| overlap when not using the Meeting Request? In previous versions
| Outlook would warn you if you manually book appointments that overlap
| or are next to each other.