I had a Windows Server 2003 Terminal Server working just fine. Office 2007 deployed, small office, no roaming profiles, not much user turnover so it was no big deal to log in once and manually set up an Outlook profile for each user. THEN, someone decided I had to change the default behavior when someone clicked on a PDF file so it would open with Acrobat instead of Reader. Following, Expert Exchange Advice, I created a user profile with admin priv, changed the file type association, then copied that profile to Default User. Problem solved for all new users. HOWEVER, there was an unintended consequence. Now, all new users fail autodiscovery when launching Outlook. It will only accept credetials for the dummy user profile that was copied to default. I got around the problem by using the Mail icon in CP (after finding it in the View X86 CP Icons) to create a new profile and delete the default one. BIG PAIN! There must be a registry tweak that will make Outlook behave like it did before and create a new profile upon first use?