I think this should be added to the manual.
For a high frame rate with smooth playback using AMD cards you use the following settings.
Waiting for Vertical Refresh - Off, Unless application specifies & OpenGL Triple Buffering - On = 60fps with smooth playback with no tearing
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I did this testing on
Windows 7 PC
Arena 4.1.3
HD7970
AMD Driver Beta 13.3
1 HD monitors for control
2 HD monitors for outputs assigned thru Advanced Output