I've been able to play this game with more or less no problem (it required some fiddling and is a bit jumpy), however, I'm stuck in the Palace of Dark Waterfalls; I can't fight the Doppelganger.

To be more specific, when I get into the room where the Doppelganger is, the little aside video plays as normal, however, the battle never actually starts; it gets stuck with the Doppelganger staring at me, he's still animated (I can see him breathing) and the music still plays...but other than that, I got nothing.

The console doesn't show anything wrong, so I don't know what's going wrong...

If you need anything else...just ask, I should be able to get it.

[edit]
OH, before I forget, I'm using PCSX2 0.9.6 (compiled 27 Feb 2009) with an AMD Athlon 64 X2 5000+.

Use the damn search button.
http://forums.pcsx2.net/thread-6131.html