4. In the Monitor Orientation section select the rotation of your monitor. If
the orientation is horizontal then you can select 'Stretch interlaced'
which is for games running on a horizontally rotated monitor and
have a resolution greater than 288. Selecting this option will enable
hardware stretching and RGB Sharp and should be checked if
using a horizontal monitor.
If vertical is selected the rotation and resolution will be set appropriately.
It will automatically disable 'Stretch interlaced' as it doesn't need it.
Note 1: it is assumed that the monitor rotation is clockwise.
Note 2: if vertical is selected, the horizontal ini's are still created