Attempting to install Exchange 2010 in an environment with an existing exchange 2003 server in production.
Upon installation, the client access role failed with the error attached to the screen shot I uploaded. After reboot, I attempted to add the mailbox role through control panel -> change (not uninstall) and again got the same error:
Cannot find server, make you you typed the name correctly.
Please see the attached screen shot for more details of the error itself.
Once I can get this installed, I need to move the mailboxes from the old server to this one to migrate the database.