Google recently released an update to Chrome, version 34, which is incompatible with the SIS Integration tab on TD Admin (displays a blank page). If you use SIS Integration, please do not update Chrome to version 34 for the time being. If you have already updated Chrome, you can access SIS Integration by using a different browser, such as Firefox, Safari, or Internet Explorer. Our development team is working on a fix for this issue, and an update will be provided when that fix is available.
UPDATE 8:00am PST 4/11/14:
This issue has now been resolved. Feel free to upgrade Chrome to the latest version.