[Alex Willmer] > http://www.openstreetmap.org/edit/view-map.html?lat=52.5&lon=-1.8&scale=0.0006 No idea about your problem, but I got a better view when I zoomed out a bit. <URL:http://www.openstreetmap.org/edit/view-map.html?lat=52.5&lon=-1.8&scale=0.0009> Do the machine have munin graphs of the performance and load?