Our small business has about 6 computers using the same network.  When making
any additions, corrections or deletions on the Outlook Contacts it doesn't
show up on all the computers.  If I'm making corrections or deletions on the
computer at the reception desk, the changes may show up on 1 other computer.  
If I'm making changes on my computer, the only things that show on the other
computers are the corrections to existing contacts.  

I have had a distribution list on here for a while and one day it was gone.  
I retyped it on my computer and that was the only one there.  When I checked
on the reception desk there was 2 of them.  I told her to delete the one with
the old information and keep the new one.  On her computer there is just one
and the one on my computer, the new one, was deleted.

I have tried all I could think of.  Right now, anything can help.