iMac Logs me out when sleeping
My iMac (hardware details below) has just begun logging me out when it goes to sleep. After 5 minutes of inactivity the screen saver comes on, then after a short while, don't know exactly how long but within 15-30 minutes the screen will go dark. When I go back to the computer I click the mouse to "wake" it up and it takes me to the login screen. When I wake it up I have to login, then it automatically opens MOST (but sometimes not all) applications I had open before it went to sleep.
All of the solutions I found say:
"Try going to: System Preferences -> Security & Privacy -> (click the Lock icon and unlock if necessary) -> click "Advanced Button" (bottom right corner) then un-tick the "Log out after ... minutes of inactivity"
This is NOT the issue. That box is NOT checked and never has been.
What else could be causing this? Could it be under "Energy Saver"? Here are my settings:
Follow-up question: Can I/Should I check the "Put hard disks to sleep when possible" box to make them last longer?
Thank you for any help you have!!
iMac Details
- iMac (27-inch, Mid 2010)
- 3.2 GHz Intel Core i3
- Running OS X Yosemite Version 10.10.2
iOS 5.0.1