Well, if the leak had been entirely in the OpenGL code, then turning off OpenGL WOULD have stopped the leak. I have found that switching to wireframe, though horribly ugly, does slow the leak sufficiently that I can work reasonably efficiently. But in my book, memory leaks are a cardinal error in programming, and saying that users just have to learn to live with it abandons your rights as a consumer to have a proper functional product in exchange for your money.