Garbage using serial functions in Arduino Due

stimmer:
The firmware is better but I still get occasional odd results. For example, after uploading (fixed) AnalogReadSerial then uploading ASCIITable then opening the serial monitor, I get this:

Would you mind run my Java ElectroShaman SerPro as discussed on other thread http://arduino.cc/forum/index.php/topic,146696.0.html to see if firmware update helps ?

I suggest this because a real RX/TX with 16-bits CRC detection provides many diversity of USB links so in a way, is tough or heavy duty test.

Thank you, Albert