Custom config: not working

I'm having problems getting the custom configuration to work. I thought I followed the documentation carefully and have been using the toolbar to test whether my custom values are overriding the default values - they are not. Other than ignoring my custom settings the editor is working as expected.

Specifics of my implementation are:

The editor is in the default location, i.e. /fckeditor in the website root directory

The custom config file myconfig.js in the website root.

The CustomConfigurationsPath is set in fckconfig.js as: FCKConfig.CustomConfigurationsPath = '/myconfig.js' ;

I have also tried ../myconfig.js' and ../../myconfig.js' without success.

I have cleared my browser cache browser history and deleted all temporary Internet files.

I'm using ASP.NET and calling the editor from the page top with <%@ Register Assembly="FredCK.FCKeditorV2" Namespace="FredCK.FCKeditorV2" TagPrefix="FCKeditorV2" %> Is there anything I need to do in this line to enable the custom config file?

I am using the following code in the page markup to implement the editor:
<FCKeditorV2:FCKeditor ID="newDescription" Height="100" Value='<%# Bind("Description") %>'
runat="server">
</FCKeditorV2:FCKeditor>
Is there anything I need to add to this markup to implement the custom config file?

I am making any reference to the editor in the code behind because I did not interpret from the documentation that this is necessary.

Thanks