Hi,
Screen shot is not available. Which version of maps you are using v2 or v3?
Have tried setting the center property in the map option, like this
var map;
function initialize() {
var mapOptions = {
zoom: 8,
center: new google.maps.LatLng(51.50,-0.12),
mapTypeId: google.maps.MapTypeId.ROADMAP
};
map = new google.maps.Map(document.getElementById('map-canvas'),
mapOptions);
}