I am running the most recent version of the 1.2007.42-19, and for the record I had trouble just this afternoon starting my n810 back up after shutting it down to test the power on issue after the system upgrade.

It has been off for about an hour or so, and during that time I tried repeatedly every few minutes to press the button in every way possible and it would not start.

Just a couple minutes ago I brought the unit back upstairs to my office and plugged the power cord in. Within a minute or two it was displaying the battery image in the center of the screen. Once it showed that it was charging, I pressed the power button one time and it turned on immediately.

Updated moral of the story: if your n810 isn't turning on with a full battery, connect it to AC power and see what happens. I still think pressing the edge of the power button with the stylus plays a role here, but it is certainly no cure-all.

I LUV MY n810! Quirky and futuristic all in one.