Thanks for reporting it. Two comments:
1) Can you be more specific about what formatting has been messed up? If it is something we can fix by, say, CSS, I'd definitely like to know.
2) You can edit your course's settings and switch your course to a different theme than the default, including the older theme we used to use. You might try that and see how it works. This might be a good choice if the formatting works fine in a different theme but not in the default, since it will save you time from making those changes. The theme is a drop-down on the course's settings page, which defaults to simply using the site's theme, but you can pick any other one you want. We were using "VT Anomaly" before, so try "Anomaly" and see if it works better for you.