why i always have a red cross while i am downloading

azn_mafia88

i have read the forum.
3 b! n0 b3 V! Y8 ?tvb now,tvbnow,bttvbthey say the "red cross" mean no space on your computer
- W/ N7 ~# A8 x+ swww2.tvboxnow.com
  G% x+ l0 u7 l9 _6 }' ubut my harddisk is not full...how come it still doing that