Party Poker Don't Like Poker Tracker?

[lynxman73]

Today in the middle of my session on PP I received a pop-up message from PP saying their system had "detected you are using software that gives you an unfair advantage over other players" and that I need to close the software or else "if you persist with the software then per our terms and conditions we take all the money in your account, etc..." All I had running was Poker Tracker, but I thought PT was fine. Is there something I need to be aware of?