Are you on windows? If so, go to C:/Users/<yourUser>/.prefs/tales-of-androgyny-preferences - open up that file in notepad, and change <entry key="fullScreen">true</entry> to <entry key="fullScreen">false</entry>
Hey - the .prefs folder might be hidden, so you may need to display hidden folders. And make sure to replace <yourUser> with the actual folder that represents your user.
