Trouble with Poker Tracker Reverting to old data

[JDubyaTas]

I am having a porblem that on a regular basis for no reason Poker Tracker will pick up and revert to data from an old site that I used to play on that I no longer use meaning I need to reset back to current site. The old data is Pacific Poker data that I no longer want. I currently use Poker Stars and this is the only data that I want to see.

I have looked everywhere for a way to stop this happenng but I need some help.

[WhiteRider]

Do you have the exact same screenname at both sites? That can happen in that case. Until we get this fixed you could apply a filter for PokerStars.
Tutorial: Filters

It doesn't sound like this is what you want, but I want to make sure that you're aware you can link your names together as aliases so that you can see all of your data together under one name. You can still filter by site when you do this, of course.
Tutorial: Aliases

As an alternative, you could create a new database and reimport just your PokerStars hands to that if you prefer.
You could also purge your old Pacific Poker (888) hands, but that would remove it completely from your database and really I guess you'll want to keep it for reference at least.