So, despite deactivated firewall, pretty open settings on my router, no other download running on my PC or any other device in the network, and a fairly decent DSL connection, the launcher installs about 1MB every 10 minutes. Whats really weird now is that everything behaves like the launcher would be loading with fullspeed. I can't even watch a youtube video. And yes, this is only in effect, while the launcher tries to update the gamefiles. While at the same time it is easily possible to run a pretty hardware hungry rts or multiple-particle-simulation on the same drive. Has somebody a (maybe even good) explanation for this?