I too installed 3.4.1, at first I got the deprecated errors too, to fix that I had to drop all the databases out and run install.php again. Even before updating to 3.4.1 my problem was that it wasn’t recognising my theme or something, I installed in a a sub-directory of the root named WPC btw, but all I can get when I visit the site is a page off the forum software running in the root directory? Can’t to get it to load the themes and such, themes are suppose to preview as you change settings, all I get is a blank screen on right side of editor??
Please advise…