An anonymous reader points us to a forum posting with the inevitable followup to NVIDIA's crippling of PhysX for users of any other display adapter. "Windows 7 allows two display drivers to be used at once — like in Windows XP. Therefore, it is possible to use an NVIDIA card for PhysX and ATI card for graphics rendering. Sadly, since the release of 186 graphics drivers, NVIDIA has decided to block this feature anytime a Non-NVIDIA GPU is present in the system. In addition, for some incomprehensible reasons, the latest version of PhysX System Software also prevents PPU cards from working if a Non-NVIDIA GPU is present. ... A forum member by the name of GenL has released an experimental beta patch [that] intercepts disable-PhysX-if-Radeon-is-present-code. So far, according to user comments the patch delivers successful results." The forum post has a link to the patch for Windows 7.