why i always have a red cross while i am downloading

azn_mafia88

i have read the forum.
: }/ E  s: i" L* e2 B1 B, |they say the "red cross" mean no space on your computer
# C" S, X3 p9 [3 Q5 t& Rtvb now,tvbnow,bttvb 5.39.217.77:8898, Y) z3 C0 A" V, Q
but my harddisk is not full...how come it still doing that