I am not able to install the game on my computer. The installer goes about half way throuhg then seems to stop, (although the graphics below keep changing) other posts say just to wait, but I waited over an hour and nothing happens. I have a cyperpower core I7 with 1 gig of vid ram and 4 gigs of ram so I don't think it iiis the computer. Also all virus and firewall are off. Help!!!