[xiamenese]

I have one licence working on two machines, but I can only have one of them running at the time. I think your problem is that you have set the licence on your notebook for "computer" rather than "user" or some such. That means the software is valid for any user of the notebook, but not valid for you the owner to use it on a second machine. You need to delete the licence on the notebook and re-install it with the same code, but making sure you choose the right option to allow you to use it on the iMac, as long as you don't try to have it running on the notebook at the same time.