I use Outlook 2007 for my schools e-mail. Periodically, I get a popup window that says Enter Network Password. I've never changed my password and it doesn't happen all the time, but right now it won't stop. I also deleted and re-added my account and it still won't stop. Also, not sure if this is related or not. After deleting my account and profile, I logged into my e-mail through the Outlook web app and it says "This account can't be used to access Outlook.com. You're currently signed in with an Office 365 email account, which can't be used with Outlook.com. Please click here to sign out of your Office 365 account, then use another Microsoft account to sign in to Outlook.com (for example, your hotmail.com, live.com, or msn.com account)." I clicked and logged in again and it says the same thing.