I have Remote Management setup on my Macbook, and I can log in fine using VNC Lite the first time, but when my iPhone goes to sleep and I try to log in again I get the message, "Host has closed the session". What's wrong? If I wait a while sometimes I can log in, but most of the time I just get that message. Also: How often will my ISP change my IP address? I don't want to be at work using VNC Lite and find out I can't log in because I don't know what my IP address is.