I have been playing Unreal Tournament 2004 for a while with the same hardware, but now the static meshes dissapear after playing the game for a little while. re-installed game, latest drivers, and directx, nothing works. Updated UT2004 also. I have 512 Mb ram and an ATI Radeon 8500 re-flashed to a Radeon 9100.
I have even shut down all non-essential processes and services while playing, still doesn't help. What can I try next? thanks for any help.

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