I have a site with this in the left panel:
<portal:PageMenu id="PageMenu1" runat="server" UseTreeView="true" />
I have a page at root level, with an html content module and a blog.
When a user clicks on the "+" to expand the tree, the page posts back, we stay on the same page, the menu expands, but the blog breaks. It shows no posts, and different stuff on the right.
mojoPortal Version 188.8.131.52 MSSQL
Operating System Microsoft Windows NT 6.0.6002 Service Pack 2
ASP.NET Info v4.0.30319 Running in Full Trust