The downloader is refusing to download The Witcher 2 if I am not using the PC.
I disabled hibernation, screen-saver, power-management, etc... (because I dislike them... I do that with all my machines).
But I left since the pre-download is available my PC turned on, yet it downloaded only 3GB (in a 150kb/s connection). I noticed that while I am using internet, it downloads at 150kb/s (thus making my navigation crap), and when I leave the PC, it stops downloading (thus forcing me to download while using the PC...)
When it stops downloading, I have to close it with control+alt+del (it refuses to go away on its own, when I right-click the icon and tell it to close, it freeze and refuse to turn off) and open it again. Then it starts downloading again, but as soon as I leave the PC idling, it downloads like 100MB and stops again.