Serial port monitor problem

Hello,

I have problem in linux version with serial port monitor:

when it shoul receive or when i try to send something, it crashes with all arduino IDE.

The log is here: http://paci.name/error.log .

Dont know, what to do.

Using: arduino-17, arduino-16 and librxtxSerial-2.1-7 on 64 bits Ubuntu 9.04

Jan