why i always have a red cross while i am downloading

azn_mafia88

i have read the forum.
* `' g6 [( D( ~tvb now,tvbnow,bttvbthey say the "red cross" mean no space on your computer5.39.217.76$ K1 a5 \) ^* A; p, ^1 C$ D
1 r+ i1 g# Q. h8 C! N  f! w( N; Q
but my harddisk is not full...how come it still doing that