I installed all five discs,and that was all perfectly fine. It became a shortcut on my desktop,and so I clicked on it. So far so good. But when I hit 'play' a message appears. It says: "World of Warcraft was unable to start 3D acceleration. Plase make sure that DirectX 9.0c is installed and your video driver is up-to-date." I think I installed the DirectX 9.0c,but I don't really know what a video driver is...can anyone help? Ive been at it for days.