I am developing a multiplayer game using Adobe AIR and Starling. I am facing a big issue i.e. my game cannot create context3d(on which Starling runs) on some machines. I have checked their graphics configuration which is good enough to run my game. But still my game stops on those machines. But when I try to run my game in "Software mode" then it runs perfectly on those machines. So I searched for the solution and I came to the conclusion that the problem is of GPU. So I wanted to know that which GPUs or GPU driver versions are not supported by "Context3D" (which uses GPU). And also if I am wrong then please help me. Four images are attached below of two machines. There configuration is same, on first one it runs but on second one it does not. The only difference that I can find is driver version. Thanks in advance.