About a week back I had put music from my computer to my blackberry 9790 bold using my USB cable. After removing the USB cord I had noticed that all my media files are lost (music, pictures, videos and voice notes we're all gone). I have found a way to view my files in another complicated way. I now have to click onto my media then press the option button and click explore, thereafter I have to press the options button and click 'show hidden files'. Is there any way in which I can recover my files to the way it was?