Yesterday WordPress 3.6 was released. The bundled version of jQuery was updated to 1.10 which broke the jQuery Columnizer plugin I use to split a form into columns. The result was jQuery would go into an infinite loop and eventually you would have to kill the page.
Fortunately someone had already encountered this problem and provided a patch to the jQuery plugin. I have incorporated the patch and released v0.55. If you’re running WordPress 3.6, this is a critical release. Older versions should continue to run correctly.
You can find v0.55 on your WordPress Dashboard or in the plugin repository.