Game not downloading....

Ok, so yesterday server is down, now today, my game opens up but is showing my background around the username/password area and no mouse pointer or anything....tried opening in windowed version and same problem...so I log in but the play screen is all black except for chat...and very laggy.  SO I Uninstalled faldon and redownloaded it, tried to install it and it gets about 75% of the way done and then a file cant be installed, so I ignore it and in a couple minutes another cant be installed and eventually the installation just pretty much comes to a standstill and you have to stop it...why is this happening?