strange slider appearance with ArcGISDynamicMapServiceLayer

VuPham

When I display a map with ArcGISDynamicMapServiceLayer, the slider just shows as a plus and minus signs. I cannot control the width or height. I already tried esriConfig.defaults.map.slider, such as
      esriConfig.defaults.map.slider = { right:"10px", top:"10px", width: null, height:"1200px" };
      esriConfig.defaults.map.zoomSymbol = {"color":[255,255,255,127],"outline":{"color":[255,0,0,255],"width":1.5,"style":"esriSLSDash"},"style":"esriSFSSolid"};

The maps I use are the ones that come with ESRI DVDs. USA_Base_Map and StreetMap_North_America from my local ArcGis Server 10.

Any advice is greatly appreciated.

Vu

VuPham

I just tried with ESRI Sample servers, and have the same problem. Here is my code:

<script type="text/javascript">
  dojo.require("esri.map");
  var map;
  function init() {
    map = new esri.Map("mapDiv");
    var basemapURL= "http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Demographics/ESRI_Population_World/MapServer";
    var basemap = new esri.layers.ArcGISDynamicMapServiceLayer(basemapURL);
    map.addLayer(basemap);
  }
  dojo.addOnLoad(init);
</script>

Vu