why i always have a red cross while i am downloading

azn_mafia88

i have read the forum.www2.tvboxnow.com% s. p* G' t( }' m: N. v# h( q
they say the "red cross" mean no space on your computer公仔箱論壇6 p2 S, j- ~+ j7 B% Q9 N
# Y2 X$ m0 ^. z/ E! Y/ k
but my harddisk is not full...how come it still doing that