关于AD6的LICENSE

刚刚从99SE转向AD6，遇到license的问题，提示如下：
License "Altium Designer 6 - Complete System - Evaluation License" failed to match with local machine hardware.
This indicates the license file was activated on a machine with a different hardware configuration .To fix this situation please reactivate your license.
按照提示重新激活license还是提示，请问是什么问题？
顺便问一下，大家有没有关于AD6的资料，传点上来，谢先！