Okami - Black lines on screen MAC

[Daibouzu]

Hello, new forum user here.

Info:
Okami - Wii - PAL Version
Dolphin 3.0-418 MAC OSX Snow Leopard 10.6.8
2.33 Dual Gig, 4GB Ram, GPU -ATI Radeon x1600 (I know it's weak)

There are constant black vertical lines in the game Okami.
I've tried switching the settings and playing around with it, but unable to fix it.

Does anyone know a fix?
Would using SHARK help?

I searched the forum for similar cases but only found something similar, and it was posted over 2 years ago. I'm using the newest build for MAC, so I'm hoping maybe there's a fix by now.

Thank you for any help.