It may have problems with power in general. Yesterday, i found another very strange symptom: The engine was off, the empeg was playing fine, but the display was off. I reset the empeg like 5 times, with no change. It was playing fine, but blank display. I was thinking that the display is broken for some reason. Then i was starting the car and reset the empeg once more, and the display came up fine. My guess is that the display will fail if the power is too low. I could imagine my batterie is pretty used up, but it is only about a year old. Also the car starts very well, the battery doesn't 'sound' like weak - i mean the starter, not the battery :-) I will measure the voltage to find out more. Also, i will measure to which extend the voltage drops when using the starter.
Thanks, Jo