The TZ20 has no on/off button but a slide lever to put on on- or off-position.
I had taken the battery out and waited for 1 min. both in the on and in the off position. It did not cure the problem.
Any other ides?
I have followed your advice. If I swich the camera on the lens comes out, I very briefly get an unfocussed picture which than becomes white with the message "System error (Focus). When I swich it off the lens stays out when it ususally gets back in when switchin off.
If there still anythin you could suggest?