I'm pretty sure this question has come up more than just in the cfgb-referred thread above. Shouldn't this go into the site FAQ or something, cuz it seems that people are not doing their proverbial homework before asking this question.
Edit your profile, and slog through the map (it's linked on the left side in the field descriptions). I haven't fixed that map yet, so it doesn't re-center on a double-click. I better just fix that one.