I have an arduino uno that works great on my mac. However, I'm traveling out of the country for a while and will only have my netbook (asus 1008HA). Its running Ubuntu 10.10 desktop. I've installed arduino from the universal repository, however the serial port option in the program is greyed out. Also of note, there is no arduino uno board option in the program. Does the repository have an older version? How do I get the serial (usb) port to work?