Automatic power off?

[cheerful]

I use the power button (short, single press) to put the device to sleep. However, sometimes I found it completely powered off after some time.

Worse, I found some data might be lost. For example, Astro File Manager will ask me to accept the license again.

Is there a power setting some where control this? Or do I have a defective unit?

Thanks!

 

[Fuganater]

Check your power settings. Mine is set for 10 minutes to turn off the screen. I'm not sure about the auto shutdown.