I have windows xp and a memorex mmp8500 mp3 player. It used to work great!! Then I got a very bad virus in my pc and reformatted the whole computer. I went to install new songs on my mp3 player and now it actually shuts down the whole computer when I try to hook mp3 player to computer. Memorex firmware doesnt do anything for me either, i cant connect my mp3 player to my computer or it will just shutdown the computer or lock the pc up. Very strange and not sure what to do. Memorex keeps telling me to upgrade the firmware, but i cant because i cant connect the pc to the mp3 player. Any other problems like this to anybody else? Thanks for any help. T. J.