NV_fragment_program2

Hello,
I have the 57.10 nvidia dev driver and am emulating NV40. What must I do to be able to use the new fragment program instructions (LOOP, RET…)?
I’ve tried adding
OPTION NV_fragment_program2 inside my fragment code, (I’ve tried both ARBfp1.0 and FP1.0) but the loader complains that it doesn’t know this option.
Has anyone tried this yet ?