GX_SetTexCoordGen2 / GX_LoadTexMtxImm ?

[Samson]

I've got a problem with the texture matrix: The GX_DTTMTXx matrix works exactly as expected, but the GX_TEXMTXx matrix has no influence at all. I'm not sure if it's GX_LoadTexMtxImm or GX_SetTexCoordGen2 that is causing problems. Did anyone have any success using texture matrices?