[solved] Hello World doesn't work! Uno R3 on Linux Mint

Hi guys,
I reinstalled everything on my PC under linux Mint10. (No RXTX mismatch error now!) and the IDE works, Blink works, so I was trying an analog pin sketch with a photoresistor, and I wasn't getting any serial data output!
So I found ladyada.net's Tutorial #4, Hello World, and I typed it in, compiled without errors, uploaded it and... No "Hello World!" Where did my string go? ( I know.. /dev/null.) Anyway, I'm trying.. Thanks for any suggestions,
---Jim

Wuuuups! I continued reading ladyada's tutorial and I found the icon on the IDE for the serial Comm window. I'm sorry, and I'M HAPPY!
P.S. The analog sketch works as described. Sciguy14, Youtube, tutorial #4. Thx.

Moderator edit: Fixed title.

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