Currently, if you start up Wireshark, no interfaces are selected in the list on the front page, so clicking the "Start" toolbar button or selecting Capture -> Start just gives an error saying that you didn't select an interface.
Similarly, Capture -> Options does not, by default, check any interfaces.
The older versions that didn't support capturing on multiple interfaces *would* choose an interface in Capture -> Options.
On the front page, should Wireshark either select an interface as the default, or select all of them by default?
If it should do one of those, should it do that in the Capture -> Options window as well?
If it shouldn't do either of them, then, if no interfaces are selected, should it disable the "Start" toolbar button and Capture -> Start menu item, so that you have to select an interface in order to use those to start a capture (the experimental Qt version does that), or should it continue to allow them but pop up an error if none are selected?
