If you're stuck on a blank page or redirecting, does your URL read "http://klout.com/#/nux/" or something similar? If so, just add a zero at the end so that the URL reads "http://klout.com/#/nux/0". This should fix the problem. If not, try clearing your cookies, cache, and browser history.
If you're seeing a fail snail, this means we're having some technical issues. You should be able to access Klout again within an hour.
If either of these issues persist, please email us at firstname.lastname@example.org with a screenshot.