Enrique,
Tnx.
The problem with the HTML problem is that it is so intermittent and variable.
The <> issues seems gone (for now). This morning I would get kicked back to the login screen when trying to update from <> mode, but not from WYSIWYG mode.
Tonight, everything seems fine 
I have never encountered the problem here at moodle.org (maybe because it isn't in the form of a HTML page resource?!
Jeff