I just received my copy Poser 5 this week. I tried to use the instant registration many times, but CL's server never responded. I filled out CL's online registration form, however there was no place for the challenge code needed to keep my copy running after seven days. I've sent several emails and finally got an automated response. It said they could send me a cd with service release 2.1. But the Poser 5 manual says not to use a service release under number 3 with my version (5.0.2.262). Assuming CL actually sends it, will the service release cd fix my problem or screw up my version of Poser 5?