I have been having this specifically when I'm looking in a certain direction in certain zones, an example is looking north in OT outpost and looking at the city when I get into neriak foreign quarter.
This started when I switched from an AMD card to nvidea card.
It's not consistent but in my dbg.txt sometimes I get a stream of "IDirect3DVertexBuffer::Lock() failed to lock vertex buffer for particle system" before the game crashes. And I can sort of feel the game lock up a split second before by a small drop in frames before freezing.
Tried updating my gfx drivers and direct3d version, still get it. Havent been able to Alt+Enter because the game remains froze or I get a ResetDevice failed
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