youtube and javascript?

[jane {^,^}]

hi i am trying to watch videos on youtube i was watching them the other day but then yesterday i went to waqtch vids and now i keep getting this message (hello you either have java script turned off or an older version) but the thing is my java is all up todate so is my flash player what is wrong i have been in my internet settings and all is ok what can i do as all is workin im so confussed plz help thanx to u all