After the recent update, all my messages are 'hidden' after a few minutes of inactivity. As long as I hover my mouse over the email subject it will appear again, but sometimes the entire email will be blank and I have to highlight everything just to see what's in the e-mail. Extension page also blanks after awhile and is almost impossible to navigate. I've disabled extensions and there is still problems, so I don't think it's because of my extensions. THanks