Disable any firewalls/anti-virus/anti-spyware that might prevent PokerAce HUD from accessing the internet.
Enable logging per the second set of instructions in this tutorial:
Tutorial: How to Create a Log FileThen open PAHUD, click Help --> About and enter your registration code. If it succeed you're all set and can re-enable your software. If it fails, it will create a PAHud.log file which contains information we can use to resolve this issue for you in the future. Simply attach that file to a
support ticket and let us know what is going on in the ticket and we will help you resolve this issue. (You can then re-enable your other software as well.)
If you have misplaced your registration code you can request a new copy be sent to you from the following link:
Registration Issues - Need Registration Code