Some Notify issues are resolved by clearing out your Silverlight cache.
1. Log out of Notify.
2. At the login screen, right click on the gray area as seen below:
3. Select the Silverlight menu option that appears.
4. In the Application Storage tab, delete each of the items related to the Notify system URL.
5. Close the web browser.
6. Open the browser and login to Notify once again.