Drunk Chrono Cross Characters

I'm having an odd issue with my character's movement in Chrono Cross. I'm just past the part in the beginning where you fight the mutated eagle/man/bird-like thing with fire and ice buddies. Once he's defeated you emerge in a fortress at night. Once I gain control, my characters (when trying to run in a straight line) run from side to side like they're drunk or something. They can't seem to move in a straight line anymore. I'm using ePSXe v1.60, I've tried VGS v1.41 with the XP video patch, I'm currently using the BOOM N64/PSX to PC adapter with a PS2 dual shock controller, I've tried using a keyboard, as well as a gamecube controller adapter AND another computer all of which have the same issue. Here's a brief illustration of what my characters do when for instance they're trying to run downward:

Start
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oO Finish oO

I've searched around the forums and can't seem to find anything related to this. I've tried the ePSXe GamePad Configurator v1.5b which I found here with no luck. I've never played this game on an actual PSX before so I don't know if this is normal or not, but seeing how much it gets in the way I'm guessing its not. Any information regarding this is much appreciated.

Thanks

Athlon XP 3000+
ASUS A7N8X Deluxe
GeForce FX 5950 Ultra
1gig PC 3200 ram
SoundBlaster Audigy 2 ZS Gamer
Windows XP Pro