   glut problem
  I made OpenGL program with glut, but glutMainloop dont work well: it dont call display function, but it calls others(keyboard, reshape). Display function is only called then i start program, focus program window or reshape it.I have laptop (OS: XP) with no (or poor) 3d support, maybe opengl is simulated. Can it be that glut doesn''t understand something and waits for ... i dont know 
  do you call glutPostRedisplay in the keyboard/mouse/motion/idle ... function ?;  eehm, nope damn system. anyway, i read that glut sucks in game development (key delay), so i will not use it.but thanks, now i saw this with my own eyes. 