Hello.
Problem is that programs don't even run. i don't know at the moment if it hangs at the bootloader or even before.
As no led blink, i think it's before bootloader starts.
R2 ought to have changed only hardware, as far as i've seen. What bothers me is that original UNO works and i don't feel i do something nasty.
Hanging up a system with just a resistor looks serious enough. I wished i could get more attention from the arduino team.
Do they come here at times, or is there an other place where to expose this problem?