I notice something like rendering problem with latest Vaadin releases in Chromium 31.0.1650.63 under linux Ubuntu 13.10.
First, look what I see at the vaadin download page:
No, clearing caches didn’t help. I’ve also checked Chrome 31.0.1650.63 on another PC, the picture is the same. Also turned off all extensions and tried incognito mode, without any difference.