[personal profile] chebe
Because it took me too long to track this information down. Seems to only be a problem on Linux.

The problem is with the firmware. A compile flag got left out, and has resulted in all kinds of frustrations. More info from the forum: http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1286088093/38#38

Fixes;
- http://www.strangeparty.com/2010/12/13/fix-your-arduino-uno-for-linux/
- http://arduino.cc/en/Hacking/DFUProgramming8U2

I haven't tried it yet, as I spent so long trying to track the problem down. Will give it a go soon.

Don't you just hate it when your shiny new toys arrive broken?