Same problem with me.
After upgrating to version 5, my LIFETIME license of SA simply stop working. Every time the program starts I get the "Evaluation Period Expired" message.
I tried every solution I got from the support guys, but the problem persists. I uninstalled and reinstalled SA, changed the old license code by a new one provided by SA support, but I cannot get rid of the license issue.
I am sure it will be fixed someday, but it is annoying activating the program everytime it starts and setting all my preferences again (since it looses it).
The program is great, but I will disable it for now.