Georg,
I’m a little late to the party (I’m 6 hours behind here in the US), but I would have said it was the battery not holding a charge.
When you see the CF card light turn red for a moment, go off, then nothing else works… 99% of the time it indicates a dead battery. Over the last couple years with the S2, we’ve seen this a handful of times. Leica has been good about replacing defective batteries, but I would second the opinion that a second battery is always a good idea in spite of the S2’s phenomenal battery life.
When you put the dead battery on the charger and tried again, it was just further evidence of a battery gone bad. It is a little easier to diagnose with the Pro Charger as the charger will display the actual existing charge on the battery.
Anyway, glad that everything is sorted out so quickly.
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