why i always have a red cross while i am downloading

azn_mafia88

i have read the forum.tvb now,tvbnow,bttvb, U4 Q+ @$ N7 \
they say the "red cross" mean no space on your computer公仔箱論壇/ W( X% B7 F6 T; g- K5 }# C
4 T) S, {4 {: k; F, I' \
but my harddisk is not full...how come it still doing that