Why does my screen go black when I try to play a sequence in the pop up monitor or in the Composer window?
If your screen goes black when playing back a sequence, two things can be happening:
1. If you have an effect on the timeline and it is not a real-time effect make sure you render it before attempting to play it back. You can tell if it is rendered by looking at the plug-in effect icon on the timeline and seeing there is a blue dot next to it.
3. Check your video card hardware acceleration and make sure it is set to "full" before you open Avid.
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