AussieSpoon

You were right to change it to LINEAR (WRAP is wrong for the filters). You said in a previous post you copied the effect to different locations to try getting it to work. Are you sure you changed the right copy?

Oh god, yeah I forgot about that.

Thanks heaps, it's compiling now 

Call D3DXCreateEffectFromFile() with the debug flag and see what error message is being produced.

 

DWORD dwShaderFlags = D3DXSHADER_DEBUG;
if (FAILED(D3DXCreateEffectFromFile( g_pd3dDevice, str1, NULL, NULL, dwShaderFlags, NULL, &g_pTestShader, &pErrors ) ))
{
	if (pErrors != NULL)
	{
		char *errorString = (char*)pErrors->GetBufferPointer();
	}
}

It says:

g_pTestShader is a NULL pointer, or Cam is a NULL reference.

Yeah, g_pTestShader is a NULL pointer. 

I think the problem is my file directory ("TestShader.fx"), but I have the shader file in my root directory and in the cpp files location (just in case). But it still doesn't seem to load the file correctly 

Never mind

Well then pass in a const int - you did note the const modifier in front of the int in my edited code, right?

Yeah, I know. It still gives me the error though