Hmm. It seems I was a bit too enthousiastic in proclaiming the virtues of the X3500 chip when playing UrbanTerror.
Although it manages around 50 fps (which is fine) when I run around my local server, it manages less by an order of magnitude (2 to 4 fps in a busy area) when connected to a public server, with 15 others players running around as well.
So perhaps I need to invest in a new GFX card.
