Strobe Media Playback

Hey,

could anybody please give me a hint on how to remove the Strobe.swf stripes from videos?

when i run the extension to show content from youtube, for example, video shows paused and six or seven vertical blue stripes appear together with the text "strobe.swf" over my video while content is being buffered

once i click play and the first byte is loaded, stripes disappear

any hint, please?

thanks

regards!

:)