1. Try in in another user. Log out of the user you use and into your spare account. If that works it could be an addon or a conflict. If it doesn't work, my bet is some addon.
2. Clean out Chrome. Here's how -> http://productforums.google.com/forum/#!topic/chrome/zIV_mQn1L60
Uninstalling and reinstalling Chrome never removes what's in that folder at the link I gave.