I did have a website open in my browser, does that count as "activity" to keep you from being logged out?
In the past I've seen some websites that have an auto-refresh that keeps the computer awake. I'm not sure if that would trigger ProSeries to do that or not, but that would be my first guess.
You have clicked a link to a site outside of the Intuit Accountants Community. By clicking "Continue", you will leave the community and be taken to that site instead.