I installed the Acquia Drupal new version 1.2.10 a couple days ago, going through all the steps just the same as with previous updates (although I haven't been backing up the database). However this time after running the update.php and clicking on the Home page link, I didn't see the "content top" block of any page. Finally I scrolled down and noticed it is at the bottom of the page.

My colleague looked at the source code for a page and He said the Div id ="content-wrapper" appears to be behaving as if there were a "clear: left" command in the CSS... and so the "content top" block appears below the left side bar instead of taking it's proper position at the top of the page below the header and just to the right of the admin side bar.

We don't know how this could have happened, or what file to fix it in.

I'm using a sub-theme of Acquia Marina. I created the sub-theme following instructions in this video:
http://gotdrupal.com/videos/drupal-theme-makeover
The only changes I've made so far were a small modification to the node-image.tpl.php file, and changing some of the theme colors. But these changes happened way before doing the recent 1.2.10 update.

Just now I did a test of reverting back to the main Acquia Marina theme as Default, and the blocks go back to showing in the right place. So, something happened to our sub-theme, but I can't tell what.