Disables
graphics adapter hardware acceleration and enables graphics
rendering using only software. For many graphics cards, this
results in slower performance. Select this option only if
instructed to do so by technical support. You can only select
this option when there are no documents open.
This option
is automatically selected and unavailable for change if your
graphics card does not support hardware acceleration, or does
not support it for the current combination of resolution, number
of colors, refresh rate, and so
forth.
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