I've just upgraded from PPro CS4 to 5. When I try to turn on the Mercury Playback feature it is grayed out.
I have an HP e9280t w/ Intel Core i7, 950@3 GHz
12 GB ram, Raid 0 HD 2x500 MB
ATI Radeon HD 4850 GPU
Your graphics card does not work with MPE
Check the list of cards that do. (All are NVIDIA)
Software MPE works always, hardware MPE only works with the nVidia CUDA cards that are listed in the FAQ http://forums.adobe.com/community/premiere/premierepro_current/cs5_faq_sheet
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