Are you using the trial version of PokerAce Hud or the registered version?
The trial version will only work on one table whereas the registered version will work on as many tables as your computer can handle.
If you are using the registered version, make sure that it is showing as registered under Help->About.
If it is showing as registered, then enable logging, open your poker client, play 30+ hands on a 'single' table (I am aware it works on a single table) then send me the PAhud.log file via the
Support system so that I can troubleshoot the issue.
Best regards,
Derek