yes now its possible to run dx11 game on dx10 graphics card.from this link you have to download the windows sdk and you have to install this in your pc.the link is (http://msdn.microsoft.com/en-in/windows/hardware/hh852363.aspx).after installing this you have to search the dxcpl.exe from your windows searchbox and from dxcpl.exe you have to activate the "force WARP" and the level is 11.1 thats it.remember you have to find and locate the game .exe run file.now its done.....my name is subrata das.