New Arduino UNO R3 not recognized by Win XP SP3 or Ubuntu 12.04

[eried]

kentritchie:
I'm having the same problem. Arduino board won't install on my Windows XP. Where am I supposed to type in the code "lspci" a previous poster wrote?
Thanks.

That is for linux, try http://arduino.cc/forum/index.php/topic,118440.0.html