Aldrin should not assume misconfiguration when the audio device is unavailable

[user]

When some program is blocking the audio device when Aldrin starts up, the following message is shown:

Aldrin tried to guess an audio driver but that didn't work.

You need to select your own. Hit OK to show the preferences dialog.

To resolve the problem, all of the following steps have to be followed: * Click OK to the dialog box * Click Cancel in Preferences * File -> Quit * Click No in Save changes dialog box * Do whatever is necessary to track down the offending program and make it relinquish control over the audio device * Restart Aldrin

Here is how it SHOULD work: * The dialog box should have "Quit" and "Retry" as possible options, which would do the obvious actions.