We place our Duo in the docking station and use it as a clock every night. However, the clock function keeps turning itself off. There's no consistency to it - sometimes the clock function stays on for hours, sometime the clock turns off after a few minutes. We can reset it by pressing the power button. The "sleep" setting on the clock menu (which allows you to pick a time period from 1 minute to 100 minutes after which the clock turns off) is unchecked and the Duo is always powered up when we place it in the docking station (if it is not powered up, the clock function doesn't work).
Anyone else having this issue? Any ideas how to fix it?