Don't set a color category and set it to show time as busy.
See
http://www.outlook-tips.net/beginner/colored_dates.htm
--
Diane Poremsky [MVP - Outlook]
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"M Skabialka" <(E-Mail Removed)> wrote in message
news:#G#(E-Mail Removed)...
> 2 users with Outlook 2007. When one creates an all day busy event the day
> becomes shaded. When the other creates the same all day busy event, the
> day stays white.
>
> White is preferred. How can I change the setting for the person who does
> not want the shading?
>