http://arduino.cc/forum/index.php/topic,82011.0.html
Or, you can try the latest version of ArduinoISP...
~~https://github.com/rsbohn/arduinoisp~~
Or, you can lower the baud rate to 9600...
http://code.google.com/p/arduino/issues/detail?id=661
https://github.com/arduino/Arduino/tree/master/build/shared/examples/ArduinoISP