Vertex Buffer Problems

hey, im having some trouble with vertex buffers, here is the code for it, im trying to map texture coords from one D3DXMesh to another.


void CDLevel::Load(char *filename, char *lightmap)
{
	char *c = new char[1000];
	ZeroMemory(c,1000);
	BYTE *read = 0;
	BYTE *write = 0;
	HRESULT r;
	//Loads X files and converts them into correct FVF format
	if(FAILED(level.LoadX((char*)filename)))
		return;
	level.EnableMulti();
	//assert(r==E_FAIL);
	if(FAILED(light.LoadX((char*)lightmap)))
		return;
	light.EnableMulti();
	//assert(r==E_FAIL);
	//assert(r==S_OK);
	const unsigned int size = level.GetNumVerts();
	// storage space
	Multi *a = new Multi[size];
	Multi *b = new Multi[size];
	
	// locks the vertex buffers of the lightmap mesh + level mesh
	light.m_pMesh->LockVertexBuffer( D3DLOCK_READONLY, &read);
	level.m_pMesh->LockVertexBuffer( D3DLOCK_READONLY, &write);
	int Offset = 0;
	for( int i= 0;i,&write+Offset,sizeof(Multi));
		CopyMemory(&b[i],&read+Offset,sizeof(Multi));
		Offset+=sizeof(Multi);
	}
	Offset = 0;
	light.m_pMesh->UnlockVertexBuffer();
	// unlock vertex buffers
	level.m_pMesh->UnlockVertexBuffer();
	// lock the vertex buffer agian this time to write over it
	level.m_pMesh->LockVertexBuffer( D3DLOCK_DISCARD , &write);
	Offset=0;
	for(i = 0;iUnlockVertexBuffer();
	// release storage
	delete []a;
	delete []b;
}

it just shutsdown after the first part. i have no idea what is going on, EnableMulti just changes the FVF format, Multi is just a format with extra texture Coords and m_pMesh is just a d3dxmesh, it crashes sometime after it loads the .X file, i think it crashes in the loop after i lock the VBs for the first time. PLEASE HELP, thankx in advance

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