I upgraded my OS the other day to 4.5 and when I try to view a youtube video it opens the media player, but never plays the video. Is this because I need a media card, because I dont currently have one. Also, my phone shows bars sometimes, GSM sometimes, and edge other times. Whats this all about. Thanks for the help to a new hopelesly adicted blackberry user.( the black star program I downloaded here is the best thing since sliced bread to me)