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just give us anything we can catch. Piece of code..or screen.
if you've just copied it then it should work..
 
This problem has been swiftly responded by Mr. Simon Maurice, the author of the tutorial. It turns out that that texture drawing code must be delimited by
glEnable( GL_TEXTURE_2D) and glDisable( GL_TEXTURE_2D). The author didn't do it for brevity reasons so it didn't worked with other images that originally intended.
 
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