Mint FAQ: For your safety we logged you out after being idle for 10 minutes when trying to login.
Due the changes in the domain, you may may see the Idle timeout issue due to outdated cookies for Mint.
The issue can be resolved by clearing all cache and cookies or using a different browser.
If you are uncertain how to do this, please find directions in the link below:
Note that it is important to also clear cookies for your favorite websites (Internet Explorer). See the screenshot below and be sure to uncheck the highlighted box.