   Compute shader on HD 4850
  Inspired by http://www.gamedev.net/community/forums/topic.asp?topic_id=516043, I am trying to create a compute shader on 10.1 hardware (Radeon HD 4850) with Catalyst 9.5 drivers. I am unable to create a buffer with a BindFlag of D3D11_BIND_UNORDERED_ACCESS, although this works with D3D_DRIVER_TYPE_REFERENCE.Any help is appreciated.   
  From what I can tell from the release notes, that driver does not support compute shader on 4.0 or 4.1.  You might be able to get a working driver through WU on a Windows 7 machine.  If not, then, as the post suggests, the drivers will be available soon.  Hopefully REF can hold you over until then.   ;  Thanks for the info. I installed Windows 7 (release candidate) today, but that did not work as well. Any idea when d3d11 drivers are expected to be available?   ;  I believe both Nvidia and ATI have D3D11 drivers available, but only for registered developers.   ;  For nvidia, these are recently available public beta drivers.32bit: http://www.nvidia.com/object/win7_winvista_32bit_186.08_beta.html64bit: http://www.nvidia.com/object/win7_winvista_64bit_186.08_beta.html;  186.08 supports compute shader on dx10 HW according to CheckFeatureSuppor, but the corresponding sample won't work.   