- Log out of StumbleUpon
- Close your Browser windows
- Visit StumbleUpon http://www.stumbleupon.com. You will be directed to the new version.
- Log in to the new version.
- When you get directed to your Home page, remove '/home' and replace it with '/compat.php'. This will then take you back to the old version.
- Log in one more time.
- When you have logged in again for the second time, go to su.pr. You should be able to access the page from there.
Hope this helps! Sorry for the inconvenience as we work on the solution.