Failed to compile Vertex Shaders

[Adnanthegreat]

  bad_vs_0039.txt (Size: 1.54 KB / Downloads: 332) When I tried to play Megaman 9 on Dolphin r7711M, with back-end as Direct3D9, I got this error:
Failed to compile Vertex Shader!
This usually happens when trying to use Dolphin with and outdated GPU or integrated GPU like the Intel GMA Series.

If you're sure this is Dolphin's error anyway, post the contents of ./User/Dump/bad_vs_0039.txt along with this error message at the forums.

Debug info (vs_3_0):
D:\Extras\System Utilities\Video_Games\Dolphin\memory(2,9): error X3000: unrecognized identifier 'vec4'

I think GPU means Graphics Card (I don't know, actually). My computer config is:
CPU - Intel Pentium 4
Graphics Card - nVidia GEForce 8400 GS
RAM - 1 GB

Also, when I play the game with backend as OpenGL, the game starts with normal FPS (60 FPS), but after some seconds, it drops down to 19 FPS~7 FPS. Please Help me with this.

[neobrain]

If you have to use unstable builds, do it properly and use the LATEST revision which has the fix for that already.

However, you're strongly encouraged to use 3.0. We provide no real support for anything more recent.