Upgraded my blog software to latest version of WordPress a few days ago. All the plugins worked fine and the upgrade is as smooth as it can be. However, I noticed that the visual editor for blog posts started behaving weird. None of the icons would appear and most of the additional functionality is lost. Suspecting upgrade glitches, I installed a fresh instance of wordpress on a unpublished URL and even that installation suffered the same issue.Â There is a long thread on the topic at wordpress. Hope I can get this fixed soon. For now, I am a HTML specialist again ;-).