Screen and Sleep - Power Mode

When I select Screen and Sleep and set it to say to 10 min, it goes into sleep mode after the given time. When I re-start the computer it looses the set time and reverts to Never. If I use the Energy Recommendation Mode I get the same results.

Desktop or laptop and are power conditions changing (plugged in or not)? You can have different power plans under specific conditions. Also do you have any 3rd party performance tuning utilities? Anything can programmatically alter your power settings.