WordPress MU

I get the following message when I've got the comments for a post turned on. Once I turn it off the page loads normal again... :S

") w.document.title = window.document.title + ' - Full Screen Video'; w.focus(); } function qt_openWindow(url){ var w = window.open('','watchFullScreen', getFullScreenWindowParams()); url = url.replace('&','&'); w.document.write("
\
") w.document.title = window.document.title + ' - Full Screen Video'; w.focus(); } function gv_switchOn(turnOn, turnOff){ var on = document.getElementById(turnOn); var off = document.getElementById(turnOff); on.style.display = 'block'; off.style.display = 'none'; } // -->

I guess it has something to do with the ExtremeVideo plugin I use, but I haven't got a clue how that could effect the comments... Anyone?