   Program behaves unpredictable on different computers
  Can you please check my Opengl program? It behaves unpredictable on different computers.Program works very fast on some computers. Program works very slowly on some computers. Also app can cause windows error (message with buttons "send", "don''t send").But program is working perfectly on my computer. I can''t trace any dependences from Windows version/cpu/video card/driver version.Zip contains source cpp file and compiled executable.I am using C++ Builder 6.0 update 4.htpp://www.geocities.com/vygose/project.zipPlease help!Thanks! 
  The fast/slow problem is probably due to a combination of video clock speed and vsync/no vsync (vertical refresh rate syncronization).  Read up on "time based animation."   "Gay marriage will encourage people to be gay, in the same way that hanging around tall people will make you tall." - Grizwald ;  Thank you for your reply!And what about error? 