My advice would be to stop using Youtube for video content.
Youtube has closed off all access to their videos via the Flash interface. You can no longer embed their videos in flash players. And even if you try, you get a policy error, preventing the video from playing.
Bottom line... Youtube is a lost cause.
Abandon ship!
Find another source for videos.
Of course, my personal opinion is to avoid Youtube in general. Their site is entirely ad-driven. They don't get paid when people embed videos in other sites, such as Utherverse. They will do anything in their power to stop people from viewing their content for free.
"The definition of insanity is doing the same thing over and over again and expecting different results." - Albert Einstein
VC Designs (Viegoth Customs) Profile Message -