Did you set the "Automatically decline conflicting meeting requests" option for that mailbox?
--
Sue Mosher, Outlook MVP
Outlook and Exchange solutions at
http://www.slipstick.com
Author of
Microsoft Outlook Programming: Jumpstart
for Administrators, Power Users, and Developers
http://www.outlookcode.com/jumpstart.aspx
"Jon" <(E-Mail Removed)> wrote in message news:0da901c398b6$5bed6420$(E-Mail Removed)...
> I am having a problem with Outlook Direct Booking. We are
> running Exchange 5.5 and Outlook XP and 2K all with the
> latest service packs. When a resource such as a
> conference room or LCD projector is booked, the system is
> allowing other users to double book it. They do receive a
> warning message but is there any way to prohibit the
> double booking of resources?