Running DayZ on a Macbook Pro with retina display (using bootcamp tom run windows).

I usually run my macbook with very large amounts of UI scaling on windows (i.e. 200%) due to the very high native display resolution (2880x1800). However this breaks the mouse on the menu systems (and inventory) - the mouse pointer does not display unless I click (right or left click) which makes the mouse pointer appear; if I move the mouse it disappears.

Note that the UI menu can use a different resolution to what the windows desktop is currently using; perhaps such a mismatch is part of the problem.

If I return windows UI scaling: (right click on desktop->personalize->display->Change the Size of all items) to 100% the problem goes away.