why i always have a red cross while i am downloading

azn_mafia88

i have read the forum.
% D+ h$ p/ J2 e. a公仔箱論壇they say the "red cross" mean no space on your computertvb now,tvbnow,bttvb* p/ ]! F/ K" x9 m# t: j8 I7 t
公仔箱論壇! G1 J* [% u  M- g4 ?; K8 J) B
but my harddisk is not full...how come it still doing that