Hi RevPeter,
1. Please open your web.config
2. Find the section below, it should under the " <htmlEditor defaultProvider="CEHtmlEditorProvider" >" section.
UseDNNRootImageDirectory="true"
3. Change it to
UseDNNRootImageDirectory="false"
4. Now your setting should work. By the way the config file for site host/admin is "\Providers\HtmlEditorProviders\CEHtmlEditorProvider\CuteSoft_Client\CuteEditor\Configuration\Security\Admin.config"
Regards,
Ken