Common OpenGL Exception

this is a kind of exception that happens normally when u r coding with opengl, whether using Tao framework for C# or native opengl when u run the opengl program and u find it just crashes with no reason then one of the main reason is the function "glutInit()" this function initializes the GLUT which should be initialized only ONCE per program run and if this function fails to initialize -for many reasons- but with me mainly because it's called more than a time, it crashes the program and just closes it so just make sure u call this function only once..

sa7e7 ana malesh fe el kalam dah we 3omri ma esta3mlt el OpenGL bas estafdt :D Thx Jaqoup :D