I was excited to see the news about the 4.3 beta so I loaded it up on my site. For some reason something in the Include folder is causing the site not to display properly. I reinstalled the stable version to my new site and re-installed it to make sure things were running properly. I then replaced the include folder and the site was broken again. Reverting back to the older include folder fixed the issue.
Here is a short video illustrating what I did and the result..
Ok. Should be fixed now.
I just pushed 4.3b2 out if you'd like to try it out.