Phoenix - can you please confirm that if you have Poser 5 on another hard drive, and you format your main drive that Poser 5 requires reactivation? If this is the case - then even if you do use another harddrive anyone reinstalling Windows (which like me - requires a Format C:) will require to get a new activation code from Curious Labs... (please assure me that they were not that silly) I don't know how much Curious Labs put into this security system - but I can't help thinking if they had put that money into Research and Development they could have fixed up the bloody elbows! :-) WiNC