i doubt your problem is related to the video plugins. read the black screen section in the FAQ below and see you can get it working by doing some of the suggested fixes mentioned within.
http://forums.ngemu.com/problems-games/65247-troubleshooting-faq-read-first-before-you-post.html
http://forums.ngemu.com/problems-games/65247-troubleshooting-faq-read-first-before-you-post.html