I am having a problem with wglJoinSwapGroupNV. When set my app to join a swap group (group 1), I get the application to hang. The application is hanging on the swap buffer. I do the join swap group after I have created the window, and have valid hdc. I have demo app that uses wglJoinSwapGroupNV, and it seems to run fine. Right now I am creating between 1-3 windows each with 1 OpenGL context, it does not seem to matter if I use 1 or 3 windows, same result.
I am using this on a machine with 2 Quadro K5000 and a sync board.
If any one has any ideas on what could cause the application to hang on the swap buffer, it would be appreciated.