First of all, let me say that I am not a very technically-savvy person. I have had this Sony BDP-S500 Blu-ray player for about a year now and every now and then I get a Blu-ray DVD from Netflix that I can't watch (most recently the movie "21"). It tries to load but never gets to the main menu screen. It normally puts a small little picture of something from the movie on the screen but it just sticks there and never gets to the main menu. Do I need to download some SW updates or something? Thanks for any advice you can give me!