This happens often:
http://www.marcosmoreno.org/forums/i...whatcanido.gif
I close all windows and programs but it still wont let me eject it. Happens to both external drives :(, i usually have to brave it and pull out the USB or restart my machine
And this is the other message i get too:
http://www.marcosmoreno.org/forums/i...hatcanido2.gif