Broken "Create Discussion" Page

Recently, when hitting the "create discussion" button, it seems the style-sheet has changed. Now, under Firefox and Chrome, the style-sheet for the "create discussion" page appears to be trying to render wider than the browser-width: page-content scrolls laterally off of both sides of the page. Should be noted that my display is set to 1600x900. A peer of mine complained that he has the same problem. The problem doesn't appear to effect contributing to existing posts. Is this a known issue and is there a fix?