Licence issues for pro

Hello,

I have a problem. My licence only allows me to install it on two computers… I installed Unity 4 pro on my laptop and on a PC where I worked once. Now I won’t be working there any more… I am wondering is there a way to cancel the licence on the work PC so that I can use that licence on a different computer?

Please help!

You need to ‘return’ the license. This needs to be done from within the editor on the machine you will no longer be using. See near the bottom of this page:

http://unity3d.com/unity/activation

If you no longer have access to that machine, you have to contact support, and they can do it for you.