I'm trying to access a default administrative share
hosted on a Vista Ultimate machine from a Windows 7 box (though my XP machine has the same problem). I'm prompted for a username and password, so far so good. I enter HOST\Jerph as my username (edit: it's a local administrator account) and the correct password, but I get access denied over and over again. I know the password is right. This has been happening for as long as I've had Vista on this machine.
I can successfully access explicit shares by giving Everyone read access. It does not prompt for a password in that case, as expected, but I obviously don't like doing that. How do I troubleshoot this problem?