This has happened to me ever since I upgraded from 7.10 to 8.04. Once I go into network-admin and add "jonolaptop-linux" to Aliases sudo seems to work. This solution isn't permanent though.
This has happened to me ever since I upgraded from 7.10 to 8.04. Once I go into network-admin and add "jonolaptop-linux" to Aliases sudo seems to work. This solution isn't permanent though.