After upgrading to 184.108.40.206 I got blank page...
- Close the Admin Panel browser window.
- As a user with root privileges, delete all files except config.xml from the following >directory: magento-install-dir/app/code/core/Mage/GoogleCheckout/etc
- When you log back in to the Admin Panel, everything works as expected. If you're still encountering errors, see Getting Help With Your Installation or Upgrade.