PokerNow with Party Poker problem

[HoldEmKillah]

I just downloaded PokerNow and already have Party downloaded on my pc. But whenever I try to open PokerNow while Party is already running, the partypoker lobby window pops up on my screen, not pokernow's.

wtf is up with that? Is it because I dl'ed it from a pc that's not clean? I only wanted that skin for datamining puposes but this problem is not letting mine party and now at the same time.