Unable to Upload new Uno, Macbook Pro

Hi All,
Have Macbook Pro, 10.4.11, Using Arduino 0022 IDE. All software installs correctly (including the FTDI serial driver); my green uno light is on when plugged into the USB port. There is an issue uploading 'blink'; I get the 'avrdude programmer is not responding' message when I try to upload. Its has something to do with the serial port I'm sure, but geez, I can't find a clear simple explanation of how to do this anywhere.
Appreciate any help here...this is going to be for my son, and he'll just drop it instantly if we can't get it going...
Thanks!

I donĀ“t know if this will help but try to change the serial port under tools/serialport/ to /dev/cu.usbmodem641/
This port will maybe not show up until you connect the arduino to the usb port.

Thanks Micke,
That particular port does not show up...I see /dev/tty.usbmodem0000201A1 and /dev/cu.usbmodem0000201A1 as my choices. I've tried both of these, with both USB ports, to no avail. The Tx and Rx lights on the Uno do light up momentarily when I try to upload, but then I receive the following:
"avrdude: stk500_getsync(): not in syne: resp=0x86
avrdude: stk500_recv(): programmer is not responding"

Is some other software driver required to get a serial port on the USB ports?
Thanks!
Steve

Interestingly, I just downloaded everything (IDE, FTDI driver) to my kids macbook...OSX 10.5.8. ON this machine, everything worked fine. I was able to open the blink program, modify it, and upload to the device with no issues.
So, now I'm wondering, does the 0022 IDE have a problem with OSX 10.4.11??

I get the same error "avrdude: stk500_recv(): programmer is not responding" when I try to upload from my iMac with 10.6.6... It worked fine until about a week ago, when I tried to use an analog reference voltage. I assumed I had fried the microcontroller, so I bought a new one. Just installed the new chip onto the board, but get the same error.

Any ideas or advice?

P.S. My board is an Uno with the ATAMega328, if that makes any difference.

Thanks!

The Uno might not work with Mac OS X 10.4, although you might try updating the USB-serial firmware on the 8U2: http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1286088093/34#34.

sambredeson: it sounds like you have a different issue. I'd suggest starting a new post so your problem doesn't get lost in this thread.

David,
Thanks very much. I'd make two remarks; if Arduino does not work with OSX 10.4, then it should be so stated. I've spent a few hours now searching around, and cannot find any consistent help, or indication that it does work, although the FTDI driver package clearly indicates that it is for 10.4, .5, and .6.

Secondly, its astounding that the simplest little task, ie, getting a mac to open a serial port, becomes such a nightmare. When the mac works, its a beautiful thing...I'm just amazed that this is so much trouble on a macbook pro, and works just fine on the other machine. Seems flaky to me.
Steve

FTDI driver package clearly indicates that it is for 10.4, .5, and .6.

And FTDI-based Arduinos work fine with 10.4.

The Uno is not FTDI-based. Installing the FTDI drivers does nothing to help (or hurt) communication with a Uno.

Thank you James...
Any suggestion on how to remedy the issue with OSX 10.4.11 on a macbook pro and an uno?
Any thoughts appreciated!
Steve

James,
BTW, I did see your posts from December I believe, discussing this same issue with others. Perhaps I failed to mention, but I too used the troubleshooting section to little avail. As noted, my Uno powers up, the Rx light comes on when uploading, but the Tx light never does. The computer does recognize that the Uno is present ('about this mac...'). So, I've spent 2-3 hrs looking around for some sort of fix, but nothing seems to work, and I am surprised at the paucity of information about this issue. The current 'fixes' (holding down the reset button, unplugging cables) do not help in my case. I think as some earlier folks have noted, there seems to be an issue with the IDE communicating with the Uno for some reason...
Thanks again,
Steve

Bumping this because I have the same issue: http://arduino.cc/forum/index.php/topic,56447.0.html

(I'm running OS X 10.4.11 on a Macbook.)