Dialog Boxes Dialog boxes should pop up in a location expected by the user (e.g. under the mouse pointer) and in a consistent location (random placement for dialog boxes is _bad_). The action buttons in a dialog box should always be located at the bottom of the box, with the positive ('Ok') on the left, and the negative ('Cancel') or the right - simply cause that's where users are used to finding them. The dialog box should support keyboard operation (Tab keys, Enter, shift-Tab) - many users are used that. The input focus should be on the 'Ok' button, not on the 'Cancel' button!.