For unknown reasons I cannot turn off my 10 days old Nokia 770. The behaviour is as follows:

When powe on/off is pressed a window pops up with the following message:

Now press (SELECT)

After pressing SELECT a new window appears with the followig message:

Touch screen and keys are active


When the SELECT is not pressed then the Nokia 770 goes into standby (screen goes out). The Nokia 770 can be used by pressing the power on button again.

Q: how to turn off the Nokia 770??