I recently set up the first Vista laptop for our domain, and discovered that there is no longer a domain dropdown box. Main application is switching between domain and local computer accounts. Since the syntax of a full domain logon name is minor trivia to a user, is there a way put back the domain select, or at least have multiple users shown on the "Switch User" screen?
There's no way (that I'm aware of...) to show a list of available domains; howewer, Vista will by default logon to the domain the computer is joined to, if the user name you type is not the name of a local user account; so in most cases you don't need to type the domain name.
The most notable exception is, of course, the Administrator account, which always exists both int the local system and in the domain; if you only type "Administrator", Vista will do a local logon, so you need to explicitly type "DOMAIN\Administrator" if you want to log on as the domain Administrator. But if you type "username" and there's no local user called "username", Vista will logon to the domain.
Of ourse, if you have multiple domains, things tend to get a little tricky... I personally hate Vista's logon screen; but Microsoft seems to like it a lot :(