I have 2 laptop users who recently developed the same problem. When composing an email in Outlook 2010, their auto-complete lists no longer work. We are using Exchange 2007 on Windows Server 2008 R2. I've checked their Outlook settings and I've cleared the auto complete cache, but nothing pops up when they start typing an email address. I have uninstalled and reinstalled, all to no avail. I sure could use some help!
Thank you!! ~Patti