if you have an electric stove you will not have to worry about running out of butane, be sure to use a good quality driver..if that still does not work then get a [link=http://www.aldn.com/grabit/]Micro Grabit[/link] to remove the screws. If that still does not work then you will have to drill the heads of the screws off and trash the diff housing.

Hope this helps..