I have a LilyPad development board that isn’t being discovered by my Macs. It’s getting power because the default program seems to be working: lights are flashing and buzzer is buzzing. However, it’s not showing up in my serial port list and I can’t load any new programs. I have an Uno that works just fine. I tried on both a Mac Mini (10.7) and an iMac (10.6) running the most recent Arduino IDE.
I realize I’m not giving you much to work with, but I don’t know where to begin. Any thoughts? I’m happy to provide more information if you let me know what you need. I’m new to the Arduino world so I’m not sure what info is helpful.