Ubuntu & Thunderbird

... it turns out the only problem was that I had to shut down and restart the computer. After that, Thunderbird has performed flawlessly - all my extensions are working and mail is coming in and out. Excellent.

I am in the process of converting my large (>5,100 songs) iTunes database to the OGG format so I can play the music from my Ubuntu box. From there, I will convert albums and songs to MP3 on an as-needed basis, since that format is the only thing the Garmin understands.

Next, I'll be searching for an application like Finale or Sibelius that will allow me to create and play back original music scores.