Need Help! PLANE function not possible! iTnc 530

Hi all

I have been learning Heidenhain for a few months now, as we have just got hold of a 5axis mac with iTNC 530 - 34049x - 03 version on it.

It has both software options and FCL3.

My problem is, Im not sure what Im doing wrong or if the machineis actually capable, but I'm trying to use the Plane Spatial function. I get the following error

PLANE function not possible!

This error I can recreate on the programming station ver 340494 - 02

But Plane spatial should be allowed in the programming station as it also has FCL3 etc.

I narrowed a program down to this

0 BEGIN PGM TEST MM
1 BLK FORM 0.1 Z X+0 Y+0 Z+0
2 BLK FORM 0.2 X+10 Y+10 Z+10
3 PLANE SPATIAL SPA+5 SPB+5 SPC+5 STAY COORD ROT
4 END PGM TEST MM


and still the same errror. Is there something I'm missing, maybe Kinematics are wrong, (but then Programming Station should work)

Really stuck here, so any help would be great. Maybe I need to call some M code or anything.

cheers for any help

pinguS