Using MS Outlook 2010

When any of our users try to book meetings spanning several days, the requested resource (i.e. the meeting room) rejects the request saying a meeting cannot be more than 1440 minutes (i.e. one day) long.

Is there a setting in the resource's profile that can be changed to allow bookings spanning several days? I looked in "options" for that profile, and could not find one.

Thanks, all