I agree with nighthawk.lol Why did they have to use that stupid registration scheme. I didn't like the sound of it the day I opened the manual and read about it. And of course as soon as I try to use it after installing Poser 5 it immediately decides it doesn't like my Poser 4 requested serial No. and tells me to call tech support. And another thing why did it need my poser 4 serial no. when it requested it before I could upgrade and give them my credit card to buy poser 5. Funny it worked to make the order. But not to get poser 5 registered and working for me. Unlike Nighthawk I had no problem getting into CL's site and getting to the registration page. My system is custom built and fairly powerful unfortunatly not powerful enough for poser 5 though lol. Oh and for all of you people out there saying well just call tech support...come on get real and get a life. We pay for a program have legit copy's of the real meta creations product earlier version and Curious labs version and when we cough up money and get a serial no., we still can't use it without going through some hocus pocus registration process that doesn't work and leaves us with vapor ware. Put a dongle on the darn thing if you think the program is that much sought after buy the warez peeps. I don't see why I have to go through so much trouble e mailing and phone calling someone to get my hard earned money to work for me. It should work right out of the box with serial no provided. Especially since they needed version 4's serial for the upgrade...duh sounds pretty simple to me......