If you downloaded version 2.3.6.7 prior to July 20, you might try downloading it agsain and replacve these files:
mojoPortal.Web.dll
mojoPortal.Features.UI.dll
mojoPortal.Net.dll
/ContactForm/MessageListDialog.aspx
/ClientScript/jqmojo/jquery.layout.min.js
there were a few bugs patched after the initial release.
Though I still think root site urls are cleaner in general.
Hope that helps,
Joe