Make this a little easier by providing us with some details.  We don't have
ESP and cannot see what you are doing:

   version of Outlook
   platform (Exchange or not)

In your case, also tell us, do they have Dell computers?  There's an add-in
sitting on the Dell that causes Calendar problems.  Milly has posted many
instructions about this in the Calendar newsgroup.

Judy Gleeson
MVP Outlook
Outlook trainer and author of Productiv_IT with Outlook

read my articles here: www.judygleeson.com
www.acorntraining.com.au
Canberra, Australia

Joseph Joubert
To teach is to learn twice.