jvector map markers are not showing up properly

I am using JVectorMap to display the map of United States and wanted to place markers on 5 cities. I have their Longitude and Latitude in my code but it seems to not work. I see the marker in the upper left hand corner of the map. I am not sure why they are positioned there, instead of on the cities I have in my code?

If anyone can provide some insight as to why the markers are not working properly:

See my code here: http://jsfiddle.net/xtian/fqqGs/

JS:

$(function(){
        $('#map').vectorMap({
        map: 'us_aea_en',
        zoomOnScroll: false,
        hoverOpacity: 0.7,
        markerStyle: {
          initial: {
            fill: '#F8E23B',
            stroke: '#383f47'
          }
        },
        markers: [
          {latLng: [41.50, 87.37], name: 'Chicago'},
          {latLng: [32.46, 96.46], name: 'Dallas'},
          {latLng: [36.10, 115.12], name: 'Las Vegas'},
          {latLng: [34.3, 118.15], name: 'Los Angeles'},
          {latLng: [40.43, 74.00], name: 'New York City'}
        ]        
        });
       });​

You just provided wrong coordinates. Longitude should be negative:

markers: [
    {latLng: [41.50, -87.37], name: 'Chicago'},
    {latLng: [32.46, -96.46], name: 'Dallas'},
    {latLng: [36.10, -115.12], name: 'Las Vegas'},
    {latLng: [34.3, -118.15], name: 'Los Angeles'},
    {latLng: [40.43, -74.00], name: 'New York City'}
]    

Here is an updated demo.