I upgraded from RED 4 to 4.1. It decided that it was unregistered, although it was registered in 4.0. It does not accept my unlock code from 4.0 when I enter it. I called Boris support 5 days ago but have not had a reply yet- called them at 3:00 today & got a message that they were closed. I'm on a G5 so I can always downgrade to 4.0 but I would rather not.
I am having the exact problem updating to 4.1. I contacted Boris Tech support a week ago and still havn't resolved. I don't want to back down to 4.0 as I have already created about a weeks worth of 4.1 animations.