ofTexture line 914 glActiveTexture(GL_TEXTURE0); -catch exception

// make sure we are on unit 0 - we may change this when setting shader samplers
// before glEnable or else the shader gets confused
/// ps: maybe if bUsingArbTex is enabled we should use glActiveTextureARB?
glActiveTexture(GL_TEXTURE0);

This happens both with GLUT and GLFW,

in some machines the moment you draw an Image/texture, it gives an exception

it has been mentioned many times.

REASON:
GL_TEXTURE0 was not introduced until openGL 1.3 so when called directly on machines without that it throws an exeption,

If I remove it, and run an empty openframeworks example with just an ofImage::draw()

it compiles and runs smoothly even with GLFW under 1.1 (but of-course it doesn't draw the texture)

Start at the line 914 glActiveTexture(GL_TEXTURE0) call and compare behavior when using GLUT or GLFW with an OpenGL 1.1 context. Reproduce the exception by drawing an ofImage, then verify that the chosen compatibility behavior avoids the exception while preserving texture drawing where supported.