it guess it's just bad luck, see what happened around 19:45
138688 725b5158e7... 2011-07-29 19:46:49 18 256.47727477 12.219
138687 8f42ff15dd... 2011-07-29 19:45:49 48 1061.94565543 12.843
138686 4770fe747f... 2011-07-29 19:41:33 136 10602.32002756 49.121
3 blocks in 5 mins, we could use that now