I think finally tracked the error that made the game crash on some computers. The culprit is OpenGL, more specifically OpenGL 1.X. Since the introduction of OpenGL 2.0 in 2004 there have been a few changes in the way how to do graphics (“it’s called shader baby!”). As my current reference of OpenGL (the OpenGL Super Bible, 5th ed.) tries to break free from the old legacy code (“fixed function pipeline”) I ended up being dependent on this new stuff.
Sorry about that. But if it does not run, you probably should get a new computer anyways.
At least some good news: errors are now nicely reported with a message box. Should your graphics card be incompatible, you will beinformed properly.
Get it from here: iftpop_0.0.2a
A new version with better graphics (OpenGL 2.X!) is coming along as I now finally fixed this error.