ok, I needed to film something on my webcam and the application would not open, so i selected "open with VLC media player". Then all my thumbnails of my on the desktop all turned into the pictures of the VLC player logo. I have restarted the computer and uninstalled VLC, neither of which helped. This is not a massive problem, as everything still opens fine, but it is quite irritating. I would prefer answers that weren't too technical, as i am quite computer illiterate.