Hi,
It does look like it.
What version of Exchange are you installing?
Also what is your domain name?
Is it .class?
If so that is quite a bad idea, as that is a single label domain.
Really you need class.com or .local etc.
Cheers
Nathan
Nathan Winters - MVP Exchange Server
MCSE & MCSA 2000 & 2003 + Messaging, MCITP Exchange 2007, MCP, VMWare VCP v2 & v3.
Welcome to the Microsoft Messaging and Mobility User Group: http://www.mmmug.co.uk