BJHenry:
That's always possible, but since the blink example is working I wouldn't expect so.
Do you mean the baud rate that is set in the sketch? No, that doesn't matter when you're uploading.
so what do you suggest ?
i have already tested the USB Serial Converter on Arduino UNO
if you did the same method of programming would you plz send me the instruction again to make sure im not doing any mistake?