When i open the Arduinosoftware, the last sketch always opens.
Sometimes this causes problems. Always then, when the software is closed and i open the software by doubleclicking the same sketch which is in memory of the Arduino-Software.
If i changed the last time i opened this sketch and didn't save this sketch, i have to check which one of the both (now open) sketches was the one without wrong changes.
This confuses me often and i think it mustn't be.
Greetz Chris