Validation and CSS with 4.1.3-SNAPSHOT

After upgrading from 4.0.2 to 4.1.3-SNAPSHOT, I'm getting some strange issues in regards to validation. When the client-side validation pops up, all I see is an "OK" button and nothing else. Are there some CSS styles I need to add in order to see the messages?

Also, is it possible to have the errors inlined instead of in a popup?

Screenshot:

Thanks,

Matt