Problem with ttyUSB0 on Ubuntu-9.04,9.10(32 bit)

Dear all

I success to compile example. But i have a problem with avrdude on FTDI. The error is shown below.

avrdude: Yikes! Invalid device signature. Double check connections and try again, or use -F to override this check.

Both of Tx/Rx LED blink for a while when i try to upload hex file to Arduino. Diecimila with atmega168 is my hardware. I already remove brltty from my desktop. Version of Arduino is 0018.

How can i upload software to my arduino on Ubuntu?

Thank you in advance

Hi, you start with this page: http://arduino.cc/en/Guide/Troubleshooting and see if anything helps

Eberhard