I have a problem adding an existing module to a page.  

I click 'Add Existing Module', get the message 'To Get Started, Please Select Site and Page First'.  I then hit the arrow n the '<None Specified>' box.  The area drops down with the rotating wheel.  Unfortunately the wheel just keeps rotating and the list is not populated.  

I have tried in both IE and Chrome.  I'm using DNN 07.01.02 and the Dark Knight Skin.

Sacha,

Thanks for replying. There are some errors:

Webpage error details

User Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.2; WOW64; Trident/6.0; .NET4.0E; .NET4.0C; .NET CLR 1.1.4322; .NET CLR 3.5.30729; .NET CLR 2.0.50727; .NET CLR 3.0.30729; InfoPath.3; BRI/2)
Timestamp: Fri, 18 Oct 2013 12:08:29 UTC

Message: Unable to get property 'length' of undefined or null reference
Line: 588
Char: 25
Code: 0
URI: http://myelectrical.com/resources/shared/components/dropdownlist/dnn.dropdownlist.js?cdv=72


Steven

Thanks for the suggestion Matthias.

I did try deleting some of the Dark Knight scripts (and while they messed up the menu, it did not solve the problem).

Using the IE debugger, I have some more information:

http://myelectrical.com/resources/shared/components/dropdownlist/dnn.dropdownlist.js?cdv=72

TreeNodeConverter.castNode = function(model) {
if (!model) {
return null;
}
var castedNode = TreeNodeConverter.createNodeFromModel(model.data);
for (var i = 0, count = model.children.length; i < count; i++) {
castedNode.children.push(TreeNodeConverter.castNode(model.children[i]));
}
return castedNode;
};

SCRIPT5007: Unable to get property 'length' of undefined or null reference
dnn.dropdownlist.js, line 588 character 25
... this is in the 'model.children.length' statement

I need some suggestions on how to go forward from here.

Steven