When I press Ctrl+F, the Find dialog appears in adventurous positions. When more than a whole screen full of text is selected, it appears completely off the bottom of the screen except for its title bar. Needless to say, this is not helpful.
A friend of mine, however, reports that the dialog is always in the same position for him and doesn't move about randomly like that. That seems to suggest that there's an option to control this behaviour. Any ideas where exactly that option can be found?