Memory Stick Mayhem!

I bought this new memory stick on saturday because my MP3 player didnt have anymore room on it and i wanted to delete all the work on my MP3 player so, there would be room for music and my MP3 player was being funny because it wouldn't allow words docs or powerpoints on there - i dunno why but it worked later on.

So, for my coursework i bought a 2GB memory stick for £7 and today was the second day i've taken it to school to give in my coursework, i gave it in and the teacher said i should do one more little piece just to get them extra marks. Now, i put my memory stick in the USB, the computer tells me its Malfunctioned - its 5 days old! 5 days! i am in an outrage. I'm going to try find the reciept to this memory stick and return it for a new one because i know it has a 30 day exchange or refund policy! i am not happy with this.