Group By Category and there will be some people that only show in the rec'd
Category group. This is due to Categories being a multivalued field ie
someone can be in more than one Category so others will show in sent an
rec'd groups.
Make sure to sort by name before you group by Category so it's easier to
compare the groups.
If comparing is too difficult 'cause the numbers are huge, you could try a
filtered View of the Contact folder. Add the criteria you need and it will
filter it for you.
BTW you forgot to mention your version and their are some quirks that are
version specific!
Here are some tips about how to post questions:
http://support.microsoft.com/?id=555375
Regards
Judy Gleeson
MVP Outlook
Trainer and Consultant
There are various articles about using Outlook here:
www.judygleeson.com
Canberra, Australia
"What do we live for, if it is not to make life less difficult for each
other?"
George Eliot