I think this installation system sucks. It would be great if it would prevent piracy of Poser 5, but let's face it, this will end up as just another hassle for the legitmate user. It will be cracked readily by hackers, leaving us real users as the only ones who are put out. Maya 3.5 has a similar system, at that's exactly what happened. Reports of it being cracked hit newsgroups only days after its release. Maya's installer generates some kind of a Challege Code based on the MAC address of your computer's ethernet card. The same week Maya was released, a fake 'Maya License Generator" exe was already in circulation. Probably an inside job, or possibly a really clever hacker. Either way, it proves the point. Even software with USB dongles have been cracked. hackers find a way to replicate the dongle response with software, or circumvent the calls to the dongle altogether by editing the software at the assembly code level. it's been done for a decade, and no anti-piracy measures have ever been 100% successful (or even close). And the tip about installing on a P5 different hard drive? Anthony, you've probably already said too much. I'm guessing there's some geek somewhere already trying to figure out exactly what characteristic of the hard drive is being used as the seed to generate the challenge code... -Adam