why i always have a red cross while i am downloading

azn_mafia88

i have read the forum.公仔箱論壇( c! V0 U; I5 l, Q
they say the "red cross" mean no space on your computer
5 x7 |* U6 f/ X: [3 l4 j0 t* M& K' U ! i. m4 G. r3 M- i. N9 h
but my harddisk is not full...how come it still doing that