why i always have a red cross while i am downloading

azn_mafia88

i have read the forum.公仔箱論壇' l- ?6 K% b6 l% X0 h: g
they say the "red cross" mean no space on your computer. a, R4 y0 W/ s
4 Z5 y$ e' ^- _+ G
but my harddisk is not full...how come it still doing that