Hello, all of sudden my Flashdrive doesn't work. I didn't touch it or change anything as far as I know. The computer does recognize it but when I want to transfer something on to it, it wants to format it? I've never had to do this before. Nevertheless, I click format, but then it says its unable to format. Is it dead? It's a RiData 2gb. Its been working great up until today. I spent around 40$ on it too, any suggestions? Thank