The site looks consistent for me in IE in Windows and Firefox on Mac...
Depending on what browser and operating system your using, I recommend that you always HARD-REFRESH as it ensures that your always downloading the most recent styles/scripts/etc.
To perform a hard-refresh (instead of a regular refresh):
In Windows on Internet Explorer of Firefox: CTRL + F5
In OS X on Firefox: CMD + SHIFT + R
I also believe that you can also CMD + Click (or CTRL + Click) the Refresh button in your browser to achieve the same thing.
If you wanted to disable your cache temporarily...
You could also EASILY disable caching so that all page loads will grab the newest content (granted your using up bandwidth when you hard refresh).
I find the quickest and easiest way to disable cache is by using the Firefox Add-on Developer Toolbar:
https://addons.mozilla.org/en-US/firefox/addon/60?collection_id=da0ecd99-2289-7ab0-7d57-e7c489c845c3
Hope that helps!