With i965 driver, I called glProgramStringARB with command string:  "!!ARBfp1.0\nATTRIB color0 = fragment.color;\nATTRIB color1 = fragment.color.primary;\nATTRIB color2 = fragment.color.secondary;\nOUTPUT outcolor = result.color;\nABS outcolor,-color2;\n\nEND\0";
The result fragment color is primary color, but it should be the secondary color.

If modify the command string as:
   char cmd1[1024] = "!!ARBfp1.0\nATTRIB color2 = fragment.color.secondary;\nOUTPUT outcolor = result.color;\nABS outcolor,-color2;\n\nEND\0"

Then i965 driver works correct.

With i915 driver and soft rendering, the bug do not exist.