More Problems

So, this morning I found a couple of pages that I replaced yesterday have again disappeared from view.  This time I can't even place the cursor on the page to paste them back.

The nav bar absolutely will not go anyplace except the top of the page, there is only the one option shown--the middle of the page.   It's the same no matter which layout I choose.   I'm deleting all other html that I inserted just in case they are producing the problems.  It hasn't made any difference.  If the problem ever get fixed, I'll have the joy of going back into almost every page to reinsert most of the special html.  A tremendous aggravation.

I'm so tired of deleting pages to redo, only to have the same thing happen again.