i just installed the newest updates for quicktime,security update, and airmac extreme. Then i tried watching videos on youtube using safari but then the videos do not show up . They are all replaced with the quicktime logo with a question mark on top. i had this problem when i installed the divx plugin a while ago but then managed to sort that out. i am wondering if any of the update i installed have anything to do with my problem here. and one final thing, i havent installed anything else other than the three updates mensioned above . if anyone has the same problem or has an idea what the problem is let me know.