Ok, here's my setup. We have an exchange server with OWA access, but is a bit quirky for obvious reasons, so I've been setting up the VPN to allow the ability to check through outlook while connected. Many problems and solutions later, it works for any machines that are part of the domain(laptops) but home machines in workgroups keep throwing up a username/password screen when connecting to the exchange server. Also, for some reason, no combination of user/password will work. Anyone else ever have this problem or know of a way to get around this?