I have an error on my galaxy tab : i can upload but ont download : I get java.io.IOExceptions error " stream is closed"

I have the save error ' stream is close" but i wonder why there is only a button "fermer" ( i am french and "fermer" = "close") when I must choose de file where it will be load... any idea for help ? I have try without using button "fermer" but it's change nothing...