Black Plague Shader issues

[Jinzai]

I recently bought Black Plague on steam and when I started playing I was greeted by the textures messing up, I've looked for a way to solve this but the only thing that fixes it is turning the shader settings onto very low, now this isn't good because there's no darkness.

I have updated the game with the 1.1 patch and my video card drivers, I notice this seems to be a common problem with ATI/AMD cards

I'm on a HP G62 Notebook PC running 64 bit windows 7, AMD Athlon II P340 Dual-Core Processor, 2200 Mhz, 2 Core, 2 Logical Processor and 3GB RAM

Any help would be appreciated thank you