So I set up a VPN on a SBS 2003 R2 and it works. I have tried it on all the XP machines we have and the XP machines connect and can view the shared folders. The Vista Machines (both Home Premium and Business) can connect but cannot open the folders. We go and ping the server after connecting to the VPN (192.168.x.x) and get response. The server sees the computers. However, we cannot open the shared folders. I know it's not the server cause I've connected with the same usernames and passwords from XP machines and got it just fine. I read elsewhere that this is a common problem with Vista. Any ideas?