Had some users (not all) who were being prompted to logon to sharepoint everytime they connected. They'd enter their username and password, but because the server is using a public friendly URL alias it didn't check active directory by default. My Network Admin friend found that adding it as a trusted site and then setting the advanced settings to automatically log on using the current user's credentials it'd work.
I'm thinking adding it to the Local Intranet would do the same thing and wouldn't require settings changes, but I'm wondering if there's something screwy with Vista clients. Oh well, at the very least it's something to check into in the future.
Something else he found along the way is to get to the credential manager (Windows 7 Control Panel) in Vista: "control userpasswords2" on the start --> search.
