We have one Windows 2003 domain, one Exchange 2003 server, and one Exchange organization. This is our first and only Exchange server and it is a separate computer from the Domain Controller. We have one user account here whose name does not appear in the Outlook address book while the book is accessing the Global Address List. The name does not appear while using Outlook Web Access either. The name does appear, however, on the Exchange Server when previewing the Global Address List. The user account is an old one and is not configured to hide its address. It has not appeared in the GAL since we started using Exchange about 1 1/2 years ago. All other accounts, older and newer than the problem one, do appear. I have had the Recipient Update Service update and even rebuild, but this has not helped. Any ideas would be greatly appreciated!