I have a Sony HD video camera, and XP Prof Serv Pack3. I used to be able to view my videofootage from my SD card in Media player, but now for some reason I can't view them. I've tried VLC but that doesn't work either. Either videos are jagged, a grey crazy screen, with no pictures, or on desktop, a bit of footage but stops and/or is very slow and cuts in and out...what can I do? I've tried to install Media Player 11 and 12, but still no luck.