Strange crash with models

[firesqual]

Hello,

I have a strange problem, sometimes my neuz crash showing me this line when i debug (i'm using Floral D.Ace fashion) :

In Object3D.cpp function
void CObject3D::RenderNormal( LPDIRECT3DDEVICE9 pd3dDevice, GMOBJECT *pObj, const D3DXMATRIX *mWorld, int nEffect, int nBlendFactor )

this line :

pd3dDevice->DrawIndexedPrimitive( D3DPT_TRIANGLELIST, 0, 0, nMaxVB, pBlock->m_nStartVertex, pBlock->m_nPrimitiveCount );

Maybe you would know ?

Thanks