Then I tried the 120 ohm resistor trick as mentioned in the beginning of the page and that doesn't work either!
Actually that is an interesting question. The 8u2 usb chip might have a lot more ummpp from it's DTR signal to the 328 reset pin then the FTDI USB chip did. It would take someone owning both boards to experiment and see if it effectively defeats the auto-reset function on the Uno. I don't so I can't.
Lefty