So today I check this page and see 4 votes that 3.7.2 isn't working for you. The page now says AdRotate is broken. Thanks for your wonderful insights, *not*.
Where are the bug reports? Where are the complaints?
Next time please tell me about your problem before clicking the "broken" button. If you have trouble using the plugin atleast let me know so I can give you an answer for it.
Since the plugin works actually fine I'm fairly sure your ads don't align anymore and you failed to reconfigure your blocks... Which is not a bug but an announced change!
I have a blog you know? http://blog.adrotateplugin.com/.
And more specific: http://blog.adrotateplugin.com/2012/07/about-the-new-blocks/