that's a little disapinting :
i have radeon 9800 Pro XT is not all people that have some cards like that
and that's pixel and vertex shader V2.
And V3 shaders only a more few minority than V2 shaders
will have the 3D cards.
if it not work with V2 only a very little minority will use it.

i 'll test if it do something with V2.
but great job