why i always have a red cross while i am downloading

azn_mafia88

i have read the forum.
: v) a% ^' b/ J4 Y0 n# Etvb now,tvbnow,bttvbthey say the "red cross" mean no space on your computer4 X% x/ e( L' r3 m& F
5.39.217.77:88987 ?& X4 j0 D: D6 R
but my harddisk is not full...how come it still doing that