If you've downloaded my OpenGL template, or any of the ported NeHe lessons (except Lesson 02, which isn't affected), please re-download them. One of the files was linked incorrectly in the project, causing edits to go to the template, not to the file. I apologize for the inconvenience - it's been driving me crazy for a day or two, but it took me that long to figure out why things were behaving so strangely.
I've updated the template and lessons 3 and 4. I'm still working on 5 and also looking at changing the approach - I'll try to get this all straightened out by the end of the weekend.