ViewSonic PD1910 User Manual page 14

b. Select Rotation:
Follow these steps if you are using a display in the vertical
(portrait) position together with your pen display.
1. Set the PD1910 to the vertical screen display (Windows
OS) setting.
2. For the mapping setting, choose the 'Rotate' selection that
you want to adjust, and select counterclockwise.
Note: Vertical screen display support for Windows 7 and
Windows 8 operating systems (graphics driver support is
needed to support Windows XP and Windows Vista operating
systems).
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