Help get Arduino 21 installed on my Ubuntu machine

Running Kubuntu 10.10 amd-64 Arduino UNO with -0022. Anyone having problem with reading serial data from the UNO board? I was trying to work through the programs "Getting started with Arduino" book and anything that reads serial data back hangs up. If I put a large delay 100 or more I can read the data on the serial monitor.

Another problem, when I installed the Processing language it somehow wipes out arduino -0022 and makes it -0018 complete with Icon on the desktop! I forget the specifics but I have to run -0022 from it's directory to get it to work again.