Critical error solution..?

[snapsh00t3r]

Hi, when i was playing games, sometimes win stops responding and then report that a critical error was occured which said:
------------------------------------------------------------------
OS: Windows XP 5.1 (Build: 2600)
CPU: GenuineIntel Unknown processor @ 3017 MHz with 767MB RAM
Video: NVIDIA GeForce FX 5700 (7189)

IDirect3DVertexBuffer8::Lock failed(D3DERR_NOTAVAILABLE).

History: FD3DDynamicVertexStream::AddVertices <- FD3DRenderInterface::SetDynamicStream <- FCanvasUtil::Flush <- UShadowBitmapMaterial::Get <- FProjectorRenderInfo::GetMaterial <- FBspProjectorDrawList::Render <- FBspDrawList::Render <- RenderLevel <- FLevelSceneNode::Render <- FCameraSceneNode::Render <- UGameEngine:raw <- UWindowsViewport::Repaint <- UWindowsClient::Tick <- ClientTick <- UGameEngine::Tick <- UpdateWorld <- MainLoop

-0-------------------------------------------------------------------

Also, it reported that something went wrong with the nv4_disp...!

any help?

 

[Osiris]

D3DERR_NOTAVAILABLE
This device does not support the queried technique.
I think its a hardware problem.