Network Manager won't save changes

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http://crunchbanglinux.org – Hello everyone,I am having a minor issue with the default network manager. I can connect fine, but it seems that I cannot change anything about my connection. I'd like to set my local IP and allow the connection to be available to all users.When I go to edit connections and choose the wireless network that I connect to, it allows me to check the box that says "Make available to all users" and it allows me to go to the IPv4 settings and change the dropdown from Automatic to Manual and then add an entry with an IP, netmask, and gateway, then give a DNS, but when I click "Save (HowTos)