MadMonkey: blaming ms always works :)
i know on my old machine at home (win98se, 400mhz, 128mb ram) i do have problems with refreshing, when i go to a game which i played previously (and i havent cleared the cache) then i might see the old board as it was at that time (although i can be several moves further as i might have played those moves at my machine at another computer) .. also when i go to the discussion boards i might see old messages as new (and new ones missing)

pressing F5 (or even ctrl-F5) solves this .. therefore i think its a cache problem

the battleboats-as-dice problem seems a bit like this

of course your machine is a bit better than my older machine .. but maybe brainkings load increased a bit causing this to happen with not-so-old machines as well ? or maybe the traffic is routed differently making data arrive slower and the browser grabs the (wrong) cache files? .. i am not sure if last scenario can happen though :)