I got the GL code to compile, and link. When I run the program it starts fine, but when it goes into fullscreen mode my computer locks up COMPLETELY. This is strange, because I can run the pre-compiled example fine.

Try to move the

if (fullscreen)
{
ChangeDisplaySettings(NULL,0);
ShowCursor(TRUE);
}

at the end of the KillGLWindow function instead of the beginning.