Freshly installed Ardunio.app on my MacBook Pro running 10.6.8.
Created a new sketch, and tried to type in a window and getting no characters to show up and a system error sound for each keystroke.
Board points to Uno serial port points to nothing.
My keyboard is going thru a USB hub but works in every other app.
Bottom of Ardunio window says Arduino Uno on /dev/usbmodemfd1111
Stymied. Looked thru this forum, did a google search, nothing.
Thoughts of a great community are????