This is in direct reference to my question on stackoverflow.
In using a standard OpenGL shader (compiled with #version 110), gl_LightSourceParameters's spotlighting seems broken on one of my tests, an ATI Mobility Radeon HD 4250. It works fine on two NVIDIA GPUs.
Can someone confirm or check if this is a driver bug? It's running Windows 7; driver reported as 8.802.2.1000. If this should go somewhere else, let me know.