Mac can't upload to board

Development Tools IDE 1.x
1

I have a ruggeduino board. I am able to upload a sketch using windows 8 (after learning how to install an unsigned driver from the rugged circuits website). But I cannot get the board to upload from my intel mac running OSX 10.6.8. When I plug the board dirctly into the computer's usb port, the power light comes on. I get an entry in Network Preferences: Ruggeduino Not Configured, and click Apply. In Arduino, I choose serial port as dev/tty.usbmodem, and device as Uno.

When I compile/verify Blink, that works. But when I upload, I get this: avrdude: stk500_getsync(): not in sync: resp=0x30. When I google this phrase, I get many hits, but they almost all refer to windows, not mac. The RX/TX lights do not blink. The computer is evidently not sending to the board. How can I make this work on the mac? I only use windows when I have to. Thanks for any help.

2

1ChicagoDave:
Which programmer are you using? (The option below "Serial Port" on drop down menu)

I was using Upload, not Upload using Programmer (I don't know enough yet to understand the latter option, but I get a different kind of error if I try Upload using Programmer.) However, Upload works now, the problem being that the correct serial port is not the first on the list, but one farther down: dev/tty.usbmodemfa1361. Thanks for your help.