The slider to adjust the timeout of the "Timer". It is positioned at the bottom left of screen (holding the phone landscape, zoom keys at top). The slider is only partially visible with about 30% of it being obscured off screen. You can see the obscured part of the slider when swiping to/from the settings page. After more investigation I can say that the above is only true when the pop-out toolbar is hidden. In fact if you tap the toolbar icon to extend the toolbar the slider moves to along so that it is fully visible. The opposite is also true... hide the toolbar and the slider jumps back to the left and is partially obscured again. If it is not possible to separate the geometry/positioning of the timeout adjustment slider from that of the toolbar, perhaps a solution could be to force the toolbar to be extended when the timer is chosen?